CVE-2023-45648 (GCVE-0-2023-45648)
Vulnerability from cvelistv5 – Published: 2023-10-10 18:38 – Updated: 2025-10-29 12:00
VLAI
EPSS
VEX
Title
Apache Tomcat: Trailer header parsing too lenient
Summary
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially
crafted, invalid trailer header could cause Tomcat to treat a single
request as multiple requests leading to the possibility of request
smuggling when behind a reverse proxy.
Older, EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-16 16:59 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/2pv8yz1pyp088tsxf… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2023/1… | x_transferred |
| https://www.debian.org/security/2023/dsa-5522 | x_transferred |
| https://www.debian.org/security/2023/dsa-5521 | x_transferred |
| https://lists.debian.org/debian-lts-announce/2023… | x_transferred |
| https://security.netapp.com/advisory/ntap-2023110… | x_transferred |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.0-M11
(semver)
Affected: 10.1.0-M1 , ≤ 10.1.13 (semver) Affected: 9.0.0-M1 , ≤ 9.0.81 (semver) Affected: 8.5.0 , ≤ 8.5.93 (semver) Unknown: 3 , < 8.5.0 (semver) Unknown: 10.0.0-M1 , ≤ 10.0.27 (semver) |
guessed | |
| apache | tomcat |
Affected:
11.0.0-m1 , ≤ 11.0.0-m11
(semver)
Affected: 10.1.0-m1 , ≤ 10.1.13 (semver) Affected: 9.0.0-m1 , ≤ 9.0.81 (semver) Affected: 8.5.0 , ≤ 8.5.93 (semver) cpe:2.3:a:apache:tomcat:-:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T20:21:16.919Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
},
{
"tags": [
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2023/10/10/10"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.debian.org/security/2023/dsa-5522"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.debian.org/security/2023/dsa-5521"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20231103-0007/"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"cpes": [
"cpe:2.3:a:apache:tomcat:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "tomcat",
"vendor": "apache",
"versions": [
{
"lessThanOrEqual": "11.0.0-m11",
"status": "affected",
"version": "11.0.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.1.13",
"status": "affected",
"version": "10.1.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.0.81",
"status": "affected",
"version": "9.0.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.5.93",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-45648",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-16T16:59:12.136875Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-08-21T13:49:43.621Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Apache Tomcat",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThanOrEqual": "11.0.0-M11",
"status": "affected",
"version": "11.0.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.1.13",
"status": "affected",
"version": "10.1.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.0.81",
"status": "affected",
"version": "9.0.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.5.93",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
},
{
"lessThan": "8.5.0",
"status": "unknown",
"version": "3",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.0.27",
"status": "unknown",
"version": "10.0.0-M1",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Keran Mu and Jianjun Chen from Tsinghua University and Zhongguancun Laboratory"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Improper Input Validation vulnerability in Apache Tomcat.\u003cp\u003eTomcat\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93\u003c/span\u003e did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\u003c/p\u003e\u003cp\u003eOlder, EOL versions may also be affected.\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003cspan style=\"background-color: var(--wht);\"\u003eUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.\u003c/span\u003e\u003cbr\u003e\u003c/p\u003e"
}
],
"value": "Improper Input Validation vulnerability in Apache Tomcat.Tomcat\u00a0from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue."
}
],
"metrics": [
{
"other": {
"content": {
"text": "important"
},
"type": "Textual description of severity"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-29T12:00:47.484Z",
"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"shortName": "apache"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Apache Tomcat: Trailer header parsing too lenient",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"assignerShortName": "apache",
"cveId": "CVE-2023-45648",
"datePublished": "2023-10-10T18:38:34.097Z",
"dateReserved": "2023-10-10T11:31:15.664Z",
"dateUpdated": "2025-10-29T12:00:47.484Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-45648",
"date": "2026-09-19",
"epss": "0.05848",
"percentile": "0.92839"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FE1F7111-22BD-489A-B2C9-E67E0D601824",
"versionEndExcluding": "8.5.94",
"versionStartIncluding": "8.5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"matchCriteriaId": "37FCE624-DD65-4AC5-A602-BB66E0E54CFC",
"versionEndExcluding": "9.0.81",
"versionStartIncluding": "9.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0995DE67-7E3B-4CFE-AB96-E2243F994755",
"versionEndExcluding": "10.1.14",
"versionStartIncluding": "10.1.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*",
"matchCriteriaId": "9D0689FE-4BC0-4F53-8C79-34B21F9B86C2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*",
"matchCriteriaId": "89B129B2-FB6F-4EF9-BF12-E589A87996CF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*",
"matchCriteriaId": "8B6787B6-54A8-475E-BA1C-AB99334B2535",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:*",
"matchCriteriaId": "EABB6FBC-7486-44D5-A6AD-FFF1D3F677E1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:*",
"matchCriteriaId": "E10C03BC-EE6B-45B2-83AE-9E8DFB58D7DB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:*",
"matchCriteriaId": "8A6DA0BE-908C-4DA8-A191-A0113235E99A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:*",
"matchCriteriaId": "39029C72-28B4-46A4-BFF5-EC822CFB2A4C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:*",
"matchCriteriaId": "1A2E05A3-014F-4C4D-81E5-88E725FBD6AD",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:*",
"matchCriteriaId": "166C533C-0833-41D5-99B6-17A4FAB3CAF0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:*",
"matchCriteriaId": "D3768C60-21FA-4B92-B98C-C3A2602D1BC4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:*",
"matchCriteriaId": "DDD510FA-A2E4-4BAF-A0DE-F4E5777E9325",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:*",
"matchCriteriaId": "9F542E12-6BA8-4504-A494-DA83E7E19BD5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:*",
"matchCriteriaId": "C2409CC7-6A85-4A66-A457-0D62B9895DC1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:*",
"matchCriteriaId": "B392A7E5-4455-4B1C-8FAC-AE6DDC70689E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:*",
"matchCriteriaId": "EF411DDA-2601-449A-9046-D250419A0E1A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:*",
"matchCriteriaId": "D7D8F2F4-AFE2-47EA-A3FD-79B54324DE02",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:*",
"matchCriteriaId": "1B4FBF97-DE16-4E5E-BE19-471E01818D40",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:*",
"matchCriteriaId": "3B266B1E-24B5-47EE-A421-E0E3CC0C7471",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:*",
"matchCriteriaId": "29614C3A-6FB3-41C7-B56E-9CC3F45B04F0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:*",
"matchCriteriaId": "C6AB156C-8FF6-4727-AF75-590D0DCB3F9D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:*",
"matchCriteriaId": "C0C5F004-F7D8-45DB-B173-351C50B0EC16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:*",
"matchCriteriaId": "D1902D2E-1896-4D3D-9E1C-3A675255072C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*",
"matchCriteriaId": "49AAF4DF-F61D-47A8-8788-A21E317A145D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*",
"matchCriteriaId": "454211D0-60A2-4661-AECA-4C0121413FEB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*",
"matchCriteriaId": "0686F977-889F-4960-8E0B-7784B73A7F2D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*",
"matchCriteriaId": "558703AE-DB5E-4DFF-B497-C36694DD7B24",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*",
"matchCriteriaId": "ED6273F2-1165-47A4-8DD7-9E9B2472941B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone1:*:*:*:*:*:*",
"matchCriteriaId": "6D402B5D-5901-43EB-8E6A-ECBD512CE367",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone10:*:*:*:*:*:*",
"matchCriteriaId": "33C71AE1-B38E-4783-BAC2-3CDA7B4D9EBA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone11:*:*:*:*:*:*",
"matchCriteriaId": "F6BD4180-D3E8-42AB-96B1-3869ECF47F6C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone12:*:*:*:*:*:*",
"matchCriteriaId": "64668CCF-DBC9-442D-9E0F-FD40E1D0DDB7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone13:*:*:*:*:*:*",
"matchCriteriaId": "FC64BB57-4912-481E-AE8D-C8FCD36142BB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone14:*:*:*:*:*:*",
"matchCriteriaId": "49B43BFD-6B6C-4E6D-A9D8-308709DDFB44",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone15:*:*:*:*:*:*",
"matchCriteriaId": "919C16BD-79A7-4597-8D23-2CBDED2EF615",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone16:*:*:*:*:*:*",
"matchCriteriaId": "81B27C03-D626-42EC-AE4E-1E66624908E3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone17:*:*:*:*:*:*",
"matchCriteriaId": "BD81405D-81A5-4683-A355-B39C912DAD2D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone18:*:*:*:*:*:*",
"matchCriteriaId": "2DCE3576-86BC-4BB8-A5FB-1274744DFD7F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone19:*:*:*:*:*:*",
"matchCriteriaId": "5571F54A-2EAC-41B6-BDA9-7D33CFE97F70",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone2:*:*:*:*:*:*",
"matchCriteriaId": "9846609D-51FC-4CDD-97B3-8C6E07108F14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone20:*:*:*:*:*:*",
"matchCriteriaId": "ED30E850-C475-4133-BDE3-74CB3768D787",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone3:*:*:*:*:*:*",
"matchCriteriaId": "2E321FB4-0B0C-497A-BB75-909D888C93CB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone4:*:*:*:*:*:*",
"matchCriteriaId": "3B0CAE57-AF7A-40E6-9519-F5C9F422C1BE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone5:*:*:*:*:*:*",
"matchCriteriaId": "7CB9D150-EED6-4AE9-BCBE-48932E50035E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone6:*:*:*:*:*:*",
"matchCriteriaId": "D334103F-F64E-4869-BCC8-670A5AFCC76C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone7:*:*:*:*:*:*",
"matchCriteriaId": "941FCF7B-FFB6-4967-95C7-BB3D32C73DAF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone8:*:*:*:*:*:*",
"matchCriteriaId": "CE1A9030-B397-4BA6-8E13-DA1503872DDB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone9:*:*:*:*:*:*",
"matchCriteriaId": "6284B74A-1051-40A7-9D74-380FEEEC3F88",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone1:*:*:*:*:*:*",
"matchCriteriaId": "D1AA7FF6-E8E7-4BF6-983E-0A99B0183008",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:*",
"matchCriteriaId": "57088BDD-A136-45EF-A8A1-2EBF79CEC2CE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone11:*:*:*:*:*:*",
"matchCriteriaId": "B32D1D7A-A04F-444E-8F45-BB9A9E4B0199",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:*",
"matchCriteriaId": "2AAD52CE-94F5-4F98-A027-9A7E68818CB6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:*",
"matchCriteriaId": "F1F981F5-035A-4EDD-8A9F-481EE8BC7FF7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:*",
"matchCriteriaId": "03A171AF-2EC8-4422-912C-547CDB58CAAA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:*",
"matchCriteriaId": "538E68C4-0BA4-495F-AEF8-4EF6EE7963CF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:*",
"matchCriteriaId": "49350A6E-5E1D-45B2-A874-3B8601B3ADCC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:*",
"matchCriteriaId": "5F50942F-DF54-46C0-8371-9A476DD3EEA3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:*",
"matchCriteriaId": "D12C2C95-B79F-4AA4-8CE3-99A3EE7991AB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:*",
"matchCriteriaId": "98792138-DD56-42DF-9612-3BDC65EEC117",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*",
"matchCriteriaId": "46D69DCC-AE4D-4EA5-861C-D60951444C6C",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Improper Input Validation vulnerability in Apache Tomcat.Tomcat\u00a0from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.\n\n"
},
{
"lang": "es",
"value": "Vulnerabilidad de validaci\u00f3n de entrada incorrecta en Apache Tomcat.Tomcat desde 11.0.0-M1 hasta 11.0.0-M11, desde 10.1.0-M1 hasta 10.1.13, desde 9.0.0-M1 hasta 9.0.81 y desde 8.5.0 hasta 8.5 .93 no analizaron correctamente los encabezados de las colas HTTP. Un encabezado de avance no v\u00e1lido y especialmente manipulado podr\u00eda hacer que Tomcat trate una sola solicitud como solicitudes m\u00faltiples, lo que genera la posibilidad de contrabando de solicitudes cuando est\u00e1 detr\u00e1s de un proxy inverso. Se recomienda a los usuarios actualizar a la versi\u00f3n 11.0.0-M12 en adelante, 10.1.14 en adelante, 9.0.81 en adelante o 8.5.94 en adelante, que solucionan el problema."
}
],
"id": "CVE-2023-45648",
"lastModified": "2024-11-21T08:27:08.117",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-10-10T19:15:09.690",
"references": [
{
"source": "security@apache.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2023/10/10/10"
},
{
"source": "security@apache.org",
"tags": [
"Vendor Advisory"
],
"url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
},
{
"source": "security@apache.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html"
},
{
"source": "security@apache.org",
"url": "https://security.netapp.com/advisory/ntap-20231103-0007/"
},
{
"source": "security@apache.org",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2023/dsa-5521"
},
{
"source": "security@apache.org",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2023/dsa-5522"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2023/10/10/10"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20231103-0007/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2023/dsa-5521"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2023/dsa-5522"
}
],
"sourceIdentifier": "security@apache.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "security@apache.org",
"type": "Primary"
},
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
],
"source": "nvd@nist.gov",
"type": "Secondary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Apache Tomcat",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThanOrEqual": "11.0.0-M11",
"status": "affected",
"version": "11.0.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.1.13",
"status": "affected",
"version": "10.1.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.0.81",
"status": "affected",
"version": "9.0.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.5.93",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
},
{
"lessThan": "8.5.0",
"status": "unknown",
"version": "3",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.0.27",
"status": "unknown",
"version": "10.0.0-M1",
"versionType": "semver"
}
]
}
],
"source": "security@apache.org"
},
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:apache:tomcat:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "tomcat",
"vendor": "apache",
"versions": [
{
"lessThanOrEqual": "11.0.0-m11",
"status": "affected",
"version": "11.0.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.1.13",
"status": "affected",
"version": "10.1.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.0.81",
"status": "affected",
"version": "9.0.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.5.93",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
}
]
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FE1F7111-22BD-489A-B2C9-E67E0D601824",
"versionEndExcluding": "8.5.94",
"versionStartIncluding": "8.5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"matchCriteriaId": "37FCE624-DD65-4AC5-A602-BB66E0E54CFC",
"versionEndExcluding": "9.0.81",
"versionStartIncluding": "9.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0995DE67-7E3B-4CFE-AB96-E2243F994755",
"versionEndExcluding": "10.1.14",
"versionStartIncluding": "10.1.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*",
"matchCriteriaId": "9D0689FE-4BC0-4F53-8C79-34B21F9B86C2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*",
"matchCriteriaId": "89B129B2-FB6F-4EF9-BF12-E589A87996CF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*",
"matchCriteriaId": "8B6787B6-54A8-475E-BA1C-AB99334B2535",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:*",
"matchCriteriaId": "EABB6FBC-7486-44D5-A6AD-FFF1D3F677E1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:*",
"matchCriteriaId": "E10C03BC-EE6B-45B2-83AE-9E8DFB58D7DB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:*",
"matchCriteriaId": "8A6DA0BE-908C-4DA8-A191-A0113235E99A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:*",
"matchCriteriaId": "39029C72-28B4-46A4-BFF5-EC822CFB2A4C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:*",
"matchCriteriaId": "1A2E05A3-014F-4C4D-81E5-88E725FBD6AD",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:*",
"matchCriteriaId": "166C533C-0833-41D5-99B6-17A4FAB3CAF0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:*",
"matchCriteriaId": "D3768C60-21FA-4B92-B98C-C3A2602D1BC4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:*",
"matchCriteriaId": "DDD510FA-A2E4-4BAF-A0DE-F4E5777E9325",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:*",
"matchCriteriaId": "9F542E12-6BA8-4504-A494-DA83E7E19BD5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:*",
"matchCriteriaId": "C2409CC7-6A85-4A66-A457-0D62B9895DC1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:*",
"matchCriteriaId": "B392A7E5-4455-4B1C-8FAC-AE6DDC70689E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:*",
"matchCriteriaId": "EF411DDA-2601-449A-9046-D250419A0E1A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:*",
"matchCriteriaId": "D7D8F2F4-AFE2-47EA-A3FD-79B54324DE02",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:*",
"matchCriteriaId": "1B4FBF97-DE16-4E5E-BE19-471E01818D40",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:*",
"matchCriteriaId": "3B266B1E-24B5-47EE-A421-E0E3CC0C7471",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:*",
"matchCriteriaId": "29614C3A-6FB3-41C7-B56E-9CC3F45B04F0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:*",
"matchCriteriaId": "C6AB156C-8FF6-4727-AF75-590D0DCB3F9D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:*",
"matchCriteriaId": "C0C5F004-F7D8-45DB-B173-351C50B0EC16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:*",
"matchCriteriaId": "D1902D2E-1896-4D3D-9E1C-3A675255072C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*",
"matchCriteriaId": "49AAF4DF-F61D-47A8-8788-A21E317A145D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*",
"matchCriteriaId": "454211D0-60A2-4661-AECA-4C0121413FEB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*",
"matchCriteriaId": "0686F977-889F-4960-8E0B-7784B73A7F2D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*",
"matchCriteriaId": "558703AE-DB5E-4DFF-B497-C36694DD7B24",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*",
"matchCriteriaId": "ED6273F2-1165-47A4-8DD7-9E9B2472941B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone1:*:*:*:*:*:*",
"matchCriteriaId": "6D402B5D-5901-43EB-8E6A-ECBD512CE367",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone10:*:*:*:*:*:*",
"matchCriteriaId": "33C71AE1-B38E-4783-BAC2-3CDA7B4D9EBA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone11:*:*:*:*:*:*",
"matchCriteriaId": "F6BD4180-D3E8-42AB-96B1-3869ECF47F6C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone12:*:*:*:*:*:*",
"matchCriteriaId": "64668CCF-DBC9-442D-9E0F-FD40E1D0DDB7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone13:*:*:*:*:*:*",
"matchCriteriaId": "FC64BB57-4912-481E-AE8D-C8FCD36142BB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone14:*:*:*:*:*:*",
"matchCriteriaId": "49B43BFD-6B6C-4E6D-A9D8-308709DDFB44",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone15:*:*:*:*:*:*",
"matchCriteriaId": "919C16BD-79A7-4597-8D23-2CBDED2EF615",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone16:*:*:*:*:*:*",
"matchCriteriaId": "81B27C03-D626-42EC-AE4E-1E66624908E3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone17:*:*:*:*:*:*",
"matchCriteriaId": "BD81405D-81A5-4683-A355-B39C912DAD2D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone18:*:*:*:*:*:*",
"matchCriteriaId": "2DCE3576-86BC-4BB8-A5FB-1274744DFD7F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone19:*:*:*:*:*:*",
"matchCriteriaId": "5571F54A-2EAC-41B6-BDA9-7D33CFE97F70",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone2:*:*:*:*:*:*",
"matchCriteriaId": "9846609D-51FC-4CDD-97B3-8C6E07108F14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone20:*:*:*:*:*:*",
"matchCriteriaId": "ED30E850-C475-4133-BDE3-74CB3768D787",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone3:*:*:*:*:*:*",
"matchCriteriaId": "2E321FB4-0B0C-497A-BB75-909D888C93CB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone4:*:*:*:*:*:*",
"matchCriteriaId": "3B0CAE57-AF7A-40E6-9519-F5C9F422C1BE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone5:*:*:*:*:*:*",
"matchCriteriaId": "7CB9D150-EED6-4AE9-BCBE-48932E50035E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone6:*:*:*:*:*:*",
"matchCriteriaId": "D334103F-F64E-4869-BCC8-670A5AFCC76C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone7:*:*:*:*:*:*",
"matchCriteriaId": "941FCF7B-FFB6-4967-95C7-BB3D32C73DAF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone8:*:*:*:*:*:*",
"matchCriteriaId": "CE1A9030-B397-4BA6-8E13-DA1503872DDB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:10.1.0:milestone9:*:*:*:*:*:*",
"matchCriteriaId": "6284B74A-1051-40A7-9D74-380FEEEC3F88",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone1:*:*:*:*:*:*",
"matchCriteriaId": "D1AA7FF6-E8E7-4BF6-983E-0A99B0183008",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:*",
"matchCriteriaId": "57088BDD-A136-45EF-A8A1-2EBF79CEC2CE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone11:*:*:*:*:*:*",
"matchCriteriaId": "B32D1D7A-A04F-444E-8F45-BB9A9E4B0199",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:*",
"matchCriteriaId": "2AAD52CE-94F5-4F98-A027-9A7E68818CB6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:*",
"matchCriteriaId": "F1F981F5-035A-4EDD-8A9F-481EE8BC7FF7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:*",
"matchCriteriaId": "03A171AF-2EC8-4422-912C-547CDB58CAAA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:*",
"matchCriteriaId": "538E68C4-0BA4-495F-AEF8-4EF6EE7963CF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:*",
"matchCriteriaId": "49350A6E-5E1D-45B2-A874-3B8601B3ADCC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:*",
"matchCriteriaId": "5F50942F-DF54-46C0-8371-9A476DD3EEA3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:*",
"matchCriteriaId": "D12C2C95-B79F-4AA4-8CE3-99A3EE7991AB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:*",
"matchCriteriaId": "98792138-DD56-42DF-9612-3BDC65EEC117",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*",
"matchCriteriaId": "46D69DCC-AE4D-4EA5-861C-D60951444C6C",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Improper Input Validation vulnerability in Apache Tomcat.Tomcat\u00a0from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue."
},
{
"lang": "es",
"value": "Vulnerabilidad de validaci\u00f3n de entrada incorrecta en Apache Tomcat.Tomcat desde 11.0.0-M1 hasta 11.0.0-M11, desde 10.1.0-M1 hasta 10.1.13, desde 9.0.0-M1 hasta 9.0.81 y desde 8.5.0 hasta 8.5 .93 no analizaron correctamente los encabezados de las colas HTTP. Un encabezado de avance no v\u00e1lido y especialmente manipulado podr\u00eda hacer que Tomcat trate una sola solicitud como solicitudes m\u00faltiples, lo que genera la posibilidad de contrabando de solicitudes cuando est\u00e1 detr\u00e1s de un proxy inverso. Se recomienda a los usuarios actualizar a la versi\u00f3n 11.0.0-M12 en adelante, 10.1.14 en adelante, 9.0.81 en adelante o 8.5.94 en adelante, que solucionan el problema."
}
],
"id": "CVE-2023-45648",
"lastModified": "2026-06-17T06:28:59.767",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-45648",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-16T16:59:12.136875Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-10-10T19:15:09.690",
"references": [
{
"source": "security@apache.org",
"tags": [
"Vendor Advisory"
],
"url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2023/10/10/10"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20231103-0007/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2023/dsa-5521"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2023/dsa-5522"
}
],
"sourceIdentifier": "security@apache.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "security@apache.org",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
],
"source": "nvd@nist.gov",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-08T18:28:07+00:00",
"cve": "CVE-2023-45648",
"id": "CVE-2023-45648",
"initial_release_date": "2023-10-10T00:00:00+00:00",
"product_status:fixed": "58",
"product_status:known_affected": "26",
"product_status:known_not_affected": "43",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "tomcat: incorrectly parsed http trailer headers can cause request smuggling",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-45648.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-16T00:25:24Z",
"cve": "CVE-2023-45648",
"id": "CVE-2023-45648",
"initial_release_date": "2025-02-14T06:11:47Z",
"product_status:known_affected": "82",
"product_status:known_not_affected": "41",
"product_status:recommended": "287",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-45648",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-45648.json",
"version": "24"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T20:21:16.919Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
},
{
"tags": [
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2023/10/10/10"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.debian.org/security/2023/dsa-5522"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.debian.org/security/2023/dsa-5521"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20231103-0007/"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"cpes": [
"cpe:2.3:a:apache:tomcat:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "tomcat",
"vendor": "apache",
"versions": [
{
"lessThanOrEqual": "11.0.0-m11",
"status": "affected",
"version": "11.0.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.1.13",
"status": "affected",
"version": "10.1.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.0.81",
"status": "affected",
"version": "9.0.0-m1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.5.93",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-45648",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-16T16:59:12.136875Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-18T16:22:17.743Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Apache Tomcat",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThanOrEqual": "11.0.0-M11",
"status": "affected",
"version": "11.0.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.1.13",
"status": "affected",
"version": "10.1.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.0.81",
"status": "affected",
"version": "9.0.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.5.93",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
},
{
"lessThan": "8.5.0",
"status": "unknown",
"version": "3",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.0.27",
"status": "unknown",
"version": "10.0.0-M1",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Keran Mu and Jianjun Chen from Tsinghua University and Zhongguancun Laboratory"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Improper Input Validation vulnerability in Apache Tomcat.\u003cp\u003eTomcat\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93\u003c/span\u003e did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\u003c/p\u003e\u003cp\u003eOlder, EOL versions may also be affected.\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003cspan style=\"background-color: var(--wht);\"\u003eUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.\u003c/span\u003e\u003cbr\u003e\u003c/p\u003e"
}
],
"value": "Improper Input Validation vulnerability in Apache Tomcat.Tomcat\u00a0from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue."
}
],
"metrics": [
{
"other": {
"content": {
"text": "important"
},
"type": "Textual description of severity"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-29T12:00:47.484Z",
"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"shortName": "apache"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Apache Tomcat: Trailer header parsing too lenient",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"assignerShortName": "apache",
"cveId": "CVE-2023-45648",
"datePublished": "2023-10-10T18:38:34.097Z",
"dateReserved": "2023-10-10T11:31:15.664Z",
"dateUpdated": "2025-10-29T12:00:47.484Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…