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CVE-2026-19672 (GCVE-0-2026-19672)
Vulnerability from cvelistv5 – Published: 2026-08-19 15:24 – Updated: 2026-08-27 19:41- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.16.0
(python)
|
guessed |
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bit-libpython-2026-19672
Vulnerability from bitnami_vulndb
The tarfile module's tar and data extraction filters created directories outside the destination for members whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given.
Only empty directories are created outside the destination. Member contents are still extracted inside it. To return to the destination the member's name must contain the destination directory's own final component, so extraction into a secure randomised directory is not affected.
This affects POSIX platforms only. On Windows, .. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created.
{
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{
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"ecosystem": "Bitnami",
"name": "libpython",
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},
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"events": [
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"type": "SEMVER"
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"type": "CVSS_V4"
}
]
}
],
"aliases": [
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],
"database_specific": {
"cpes": [
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],
"severity": "Medium"
},
"details": "The tarfile module\u0027s tar and data\n extraction filters created directories outside the destination for \nmembers whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given.\n\nOnly\n empty directories are created outside the destination. Member contents \nare still extracted inside it. To return to the destination the member\u0027s\n name must contain the destination directory\u0027s own final component, so \nextraction into a secure randomised directory is not affected.\n\nThis affects POSIX platforms only. On Windows, .. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created.",
"id": "BIT-libpython-2026-19672",
"modified": "2026-08-28T06:10:13.950Z",
"published": "2026-08-25T12:53:36.732Z",
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}
bit-python-2026-19672
Vulnerability from bitnami_vulndb
The tarfile module's tar and data extraction filters created directories outside the destination for members whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given.
Only empty directories are created outside the destination. Member contents are still extracted inside it. To return to the destination the member's name must contain the destination directory's own final component, so extraction into a secure randomised directory is not affected.
This affects POSIX platforms only. On Windows, .. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created.
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"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
],
"aliases": [
"CVE-2026-19672"
],
"database_specific": {
"cpes": [
"cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"
],
"severity": "Medium"
},
"details": "The tarfile module\u0027s tar and data\n extraction filters created directories outside the destination for \nmembers whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given.\n\nOnly\n empty directories are created outside the destination. Member contents \nare still extracted inside it. To return to the destination the member\u0027s\n name must contain the destination directory\u0027s own final component, so \nextraction into a secure randomised directory is not affected.\n\nThis affects POSIX platforms only. On Windows, .. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created.",
"id": "BIT-python-2026-19672",
"modified": "2026-08-28T06:10:13.950Z",
"published": "2026-08-25T12:57:48.991Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"type": "WEB",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/J2WT2ALRWEXQJOB3C7Q2HYWUXP3CINWO/"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19672"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/08/25/10"
}
],
"schema_version": "1.6.2",
"summary": "tarfile extraction filter bypass allows creation of directories outside the destination"
}
CERTFR-2026-AVI-1062
Vulnerability from certfr_avis - Published: 2026-08-21 - Updated: 2026-08-21
Une vulnérabilité a été découverte dans Python. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "CPython sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "CPython",
"vendor": {
"name": "Python",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-19672",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-19672"
}
],
"initial_release_date": "2026-08-21T00:00:00",
"last_revision_date": "2026-08-21T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1062",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-08-21T00:00:00.000000"
}
],
"risks": [
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Python. Elle permet \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Vuln\u00e9rabilit\u00e9 dans Python",
"vendor_advisories": [
{
"published_at": "2026-08-19",
"title": "Bulletin de s\u00e9curit\u00e9 Python J2WT2ALRWEXQJOB3C7Q2HYWUXP3CINWO",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/J2WT2ALRWEXQJOB3C7Q2HYWUXP3CINWO/"
}
]
}
FKIE_CVE-2026-19672
Vulnerability from fkie_nvd - Published: 2026-08-19 16:17 - Updated: 2026-08-28 21:16| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"modules": [
"tarfile"
],
"product": "CPython",
"repo": "https://github.com/python/cpython",
"vendor": "Python Software Foundation",
"versions": [
{
"lessThan": "3.16.0",
"status": "affected",
"version": "0",
"versionType": "python"
}
]
}
],
"source": "cna@python.org"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The tarfile module\u0027s tar and data\n extraction filters created directories outside the destination for \nmembers whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given.\n\nOnly\n empty directories are created outside the destination. Member contents \nare still extracted inside it. To return to the destination the member\u0027s\n name must contain the destination directory\u0027s own final component, so \nextraction into a secure randomised directory is not affected.\n\nThis affects POSIX platforms only. On Windows, .. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created."
}
],
"id": "CVE-2026-19672",
"lastModified": "2026-08-28T21:16:15.740",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "cna@python.org",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-19672",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T19:28:09.797384Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-19T16:17:06.593",
"references": [
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"source": "cna@python.org",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/J2WT2ALRWEXQJOB3C7Q2HYWUXP3CINWO/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2026/08/25/10"
}
],
"sourceIdentifier": "cna@python.org",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-22"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
GHSA-PRXG-VVHF-MGQQ
Vulnerability from github – Published: 2026-08-19 18:32 – Updated: 2026-08-26 21:31The tarfile module's tar and data extraction filters created directories outside the destination for members whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given.
Only empty directories are created outside the destination. Member contents are still extracted inside it. To return to the destination the member's name must contain the destination directory's own final component, so extraction into a secure randomised directory is not affected.
This affects POSIX platforms only. On Windows, .. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created.
{
"affected": [],
"aliases": [
"CVE-2026-19672"
],
"database_specific": {
"cwe_ids": [
"CWE-22"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-19T16:17:06Z",
"severity": "MODERATE"
},
"details": "The tarfile module\u0027s tar and data\n extraction filters created directories outside the destination for \nmembers whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given.\n\nOnly\n empty directories are created outside the destination. Member contents \nare still extracted inside it. To return to the destination the member\u0027s\n name must contain the destination directory\u0027s own final component, so \nextraction into a secure randomised directory is not affected.\n\nThis affects POSIX platforms only. On Windows, .. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created.",
"id": "GHSA-prxg-vvhf-mgqq",
"modified": "2026-08-26T21:31:28Z",
"published": "2026-08-19T18:32:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19672"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/pull/156000"
},
{
"type": "WEB",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/J2WT2ALRWEXQJOB3C7Q2HYWUXP3CINWO"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/08/25/10"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
MSRC_CVE-2026-19672
Vulnerability from csaf_microsoft - Published: 2026-08-23 01:04 - Updated: 2026-09-11 01:44| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 21811-17084 | — |
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 17084-2 | — |
None Available
|
|
| Unresolved product id: 17084-1 | — |
Vendor Fix
|
| URL | Category |
|---|---|
| https://msrc.microsoft.com/csaf/vex/2026/msrc_cve… | self |
| https://support.microsoft.com/lifecycle | external |
| https://www.first.org/cvss | external |
| https://msrc.microsoft.com/csaf/vex/2026/msrc_cve… | self |
{
"document": {
"category": "csaf_vex",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en-US",
"notes": [
{
"category": "general",
"text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
"title": "Disclaimer"
}
],
"publisher": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2026-19672 tarfile extraction filter bypass allows creation of directories outside the destination - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-19672.json"
},
{
"category": "external",
"summary": "Microsoft Support Lifecycle",
"url": "https://support.microsoft.com/lifecycle"
},
{
"category": "external",
"summary": "Common Vulnerability Scoring System",
"url": "https://www.first.org/cvss"
}
],
"title": "tarfile extraction filter bypass allows creation of directories outside the destination",
"tracking": {
"current_release_date": "2026-09-11T01:44:34.000Z",
"generator": {
"date": "2026-09-11T07:03:36.031Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2026-19672",
"initial_release_date": "2026-08-23T01:04:29.000Z",
"revision_history": [
{
"date": "2026-08-23T01:04:29.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
},
{
"date": "2026-08-24T14:44:53.000Z",
"legacy_version": "2",
"number": "2",
"summary": "Information published."
},
{
"date": "2026-09-09T14:44:40.000Z",
"legacy_version": "3",
"number": "3",
"summary": "Information published."
},
{
"date": "2026-09-11T01:44:34.000Z",
"legacy_version": "4",
"number": "4",
"summary": "Information published."
}
],
"status": "final",
"version": "4"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "3.0",
"product": {
"name": "Azure Linux 3.0",
"product_id": "17084"
}
}
],
"category": "product_name",
"name": "Azure Linux"
},
{
"branches": [
{
"category": "product_version_range",
"name": "azl3 python3 0:3.12.9-14.azl3",
"product": {
"name": "azl3 python3 0:3.12.9-14.azl3",
"product_id": "2"
}
},
{
"category": "product_version_range",
"name": "\u003cazl3 python3 0:3.12.14-1.azl3",
"product": {
"name": "\u003cazl3 python3 0:3.12.14-1.azl3",
"product_id": "1"
}
},
{
"category": "product_version",
"name": "azl3 python3 0:3.12.14-1.azl3",
"product": {
"name": "azl3 python3 0:3.12.14-1.azl3",
"product_id": "21811"
}
}
],
"category": "product_name",
"name": "python3"
}
],
"category": "vendor",
"name": "Microsoft"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "azl3 python3 0:3.12.9-14.azl3 as a component of Azure Linux 3.0",
"product_id": "17084-2"
},
"product_reference": "2",
"relates_to_product_reference": "17084"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003cazl3 python3 0:3.12.14-1.azl3 as a component of Azure Linux 3.0",
"product_id": "17084-1"
},
"product_reference": "1",
"relates_to_product_reference": "17084"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "azl3 python3 0:3.12.14-1.azl3 as a component of Azure Linux 3.0",
"product_id": "21811-17084"
},
"product_reference": "21811",
"relates_to_product_reference": "17084"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-19672",
"notes": [
{
"category": "general",
"text": "PSF",
"title": "Assigning CNA"
}
],
"product_status": {
"fixed": [
"21811-17084"
],
"known_affected": [
"17084-2",
"17084-1"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2026-19672 tarfile extraction filter bypass allows creation of directories outside the destination - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-19672.json"
}
],
"remediations": [
{
"category": "none_available",
"date": "2026-08-23T01:04:29.000Z",
"details": "There is no fix available for this vulnerability as of now",
"product_ids": [
"17084-2"
]
},
{
"category": "vendor_fix",
"date": "2026-08-23T01:04:29.000Z",
"details": "0:3.12.14-2.azl3:Security Update",
"product_ids": [
"17084-1"
]
}
],
"title": "tarfile extraction filter bypass allows creation of directories outside the destination"
}
]
}
RHSA-2026:65505
Vulnerability from csaf_redhat - Published: 2026-09-08 14:52 - Updated: 2026-09-08 22:45A flaw was found in Python. The `HTTPPasswordMgr` class in the `urllib.request` module did not correctly consider the URL scheme when matching stored credentials against a requested URL. This allowed credentials intended for an HTTPS (secure) connection to be sent over an unencrypted HTTP connection to the same host. A remote attacker, by redirecting or downgrading a client to plain HTTP, could exploit this to capture sensitive credentials in cleartext, leading to information disclosure.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@x86_64 | — |
Vendor Fix
fix
|
A flaw was found in the Python 'stringprep' module. This module incorrectly processed characters by using the latest Unicode codepoint attributes instead of the Unicode 3.2.0 standard specified in RFC 3454. This deviation can lead to mismatches when processing internationalized domain names (IDNA) using the IDNA 2003 standard. The consequence is a potential breakdown in interoperability for domain names containing characters with updated Unicode attributes since version 3.2.0.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@x86_64 | — |
Vendor Fix
fix
|
A flaw was found in the Python `tarfile` module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX (Portable Operating System Interface) platforms. This occurs when processing a specially crafted archive containing member names that use directory traversal sequences (e.g., `../`) to leave and then re-enter the target directory. While only empty directories are created outside the destination, this can lead to unintended file system modifications.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:python3-14-main@x86_64 | — |
Vendor Fix
fix
|
{
"document": {
"aggregate_severity": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Moderate"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
"label": "WHITE",
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"title": "Details"
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"category": "legal_disclaimer",
"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
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"title": "python: Python: Information disclosure due to incorrect URL scheme matching"
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},
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}
RHSA-2026:65513
Vulnerability from csaf_redhat - Published: 2026-09-08 15:00 - Updated: 2026-09-08 22:49A flaw was found in Python. The `HTTPPasswordMgr` class in the `urllib.request` module did not correctly consider the URL scheme when matching stored credentials against a requested URL. This allowed credentials intended for an HTTPS (secure) connection to be sent over an unencrypted HTTP connection to the same host. A remote attacker, by redirecting or downgrading a client to plain HTTP, could exploit this to capture sensitive credentials in cleartext, leading to information disclosure.
A flaw was found in the Python 'stringprep' module. This module incorrectly processed characters by using the latest Unicode codepoint attributes instead of the Unicode 3.2.0 standard specified in RFC 3454. This deviation can lead to mismatches when processing internationalized domain names (IDNA) using the IDNA 2003 standard. The consequence is a potential breakdown in interoperability for domain names containing characters with updated Unicode attributes since version 3.2.0.
A flaw was found in the Python `tarfile` module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX (Portable Operating System Interface) platforms. This occurs when processing a specially crafted archive containing member names that use directory traversal sequences (e.g., `../`) to leave and then re-enter the target directory. While only empty directories are created outside the destination, this can lead to unintended file system modifications.
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RHSA-2026:65525
Vulnerability from csaf_redhat - Published: 2026-09-08 15:16 - Updated: 2026-09-08 22:45A flaw was found in Python. The `HTTPPasswordMgr` class in the `urllib.request` module did not correctly consider the URL scheme when matching stored credentials against a requested URL. This allowed credentials intended for an HTTPS (secure) connection to be sent over an unencrypted HTTP connection to the same host. A remote attacker, by redirecting or downgrading a client to plain HTTP, could exploit this to capture sensitive credentials in cleartext, leading to information disclosure.
A flaw was found in the Python 'stringprep' module. This module incorrectly processed characters by using the latest Unicode codepoint attributes instead of the Unicode 3.2.0 standard specified in RFC 3454. This deviation can lead to mismatches when processing internationalized domain names (IDNA) using the IDNA 2003 standard. The consequence is a potential breakdown in interoperability for domain names containing characters with updated Unicode attributes since version 3.2.0.
A flaw was found in the Python `tarfile` module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX (Portable Operating System Interface) platforms. This occurs when processing a specially crafted archive containing member names that use directory traversal sequences (e.g., `../`) to leave and then re-enter the target directory. While only empty directories are created outside the destination, this can lead to unintended file system modifications.
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"title": "python: Python: Information disclosure due to incorrect URL scheme matching"
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RHSA-2026:65531
Vulnerability from csaf_redhat - Published: 2026-09-08 15:27 - Updated: 2026-09-08 22:45A flaw was found in Python. The `HTTPPasswordMgr` class in the `urllib.request` module did not correctly consider the URL scheme when matching stored credentials against a requested URL. This allowed credentials intended for an HTTPS (secure) connection to be sent over an unencrypted HTTP connection to the same host. A remote attacker, by redirecting or downgrading a client to plain HTTP, could exploit this to capture sensitive credentials in cleartext, leading to information disclosure.
A flaw was found in the Python 'stringprep' module. This module incorrectly processed characters by using the latest Unicode codepoint attributes instead of the Unicode 3.2.0 standard specified in RFC 3454. This deviation can lead to mismatches when processing internationalized domain names (IDNA) using the IDNA 2003 standard. The consequence is a potential breakdown in interoperability for domain names containing characters with updated Unicode attributes since version 3.2.0.
A flaw was found in the Python `tarfile` module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX (Portable Operating System Interface) platforms. This occurs when processing a specially crafted archive containing member names that use directory traversal sequences (e.g., `../`) to leave and then re-enter the target directory. While only empty directories are created outside the destination, this can lead to unintended file system modifications.
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"title": "Details"
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"title": "Terms of Use"
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},
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"title": "python: Python: Information disclosure due to incorrect URL scheme matching"
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"name": "Behavioral Change in New Version or Environment"
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"text": "A flaw was found in the Python \u0027stringprep\u0027 module. This module incorrectly processed characters by using the latest Unicode codepoint attributes instead of the Unicode 3.2.0 standard specified in RFC 3454. This deviation can lead to mismatches when processing internationalized domain names (IDNA) using the IDNA 2003 standard. The consequence is a potential breakdown in interoperability for domain names containing characters with updated Unicode attributes since version 3.2.0.",
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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},
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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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.
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.