Common Weakness Enumeration

CWE-93

Allowed

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

477 vulnerabilities reference this CWE, most recent first.

CVE-2026-118372 (GCVE-0-2026-118372)

Vulnerability from cvelistv5 – Published: 2026-10-28 02:03 – Updated: 2026-10-28 16:11
VLAI
Title
LibreSSL ocspcheck through 4.4.0 CRLF Injection via AIA OCSP URL Path
Summary
LibreSSL ocspcheck through 4.4.0 contains a CRLF injection vulnerability that allows attackers to inject HTTP headers by embedding CR/LF sequences in a certificate's AIA OCSP URI path. Because url2host() copies the path without rejecting control characters and http_open() places it in the POST request line, attackers can inject headers or split OCSP requests sent to the responder host.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-28 14:35 UTC
CWE
  • CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6929 records in the last 180 days details
References
Impacted products
Vendor Product Version
OpenBSD LibreSSL Affected: 0 , ≤ 4.4.0 (semver)
    cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-19 00:00
Credits
Aziz Elbelaychy (Ostorlab) Kenjiro Nakayama
Show details on NVD website
To clipboard 

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CVE-2026-118371 (GCVE-0-2026-118371)

Vulnerability from cvelistv5 – Published: 2026-10-28 02:03 – Updated: 2026-10-28 02:03
VLAI
Title
LibreSSL through 4.4.0 CRLF Injection via OCSP_sendreq_new() Request Line
Summary
LibreSSL through 4.4.0 contains a CRLF injection vulnerability in the libcrypto OCSP_sendreq_new() and OCSP_parse_url() functions, which write unvalidated request paths into the OCSP POST request line. Attackers can embed carriage return and line feed characters in a certificate's Authority Information Access OCSP URI to inject HTTP headers or split requests sent to responders and proxies.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6929 records in the last 180 days details
References
Impacted products
Vendor Product Version
OpenBSD LibreSSL Affected: 0 , ≤ 4.4.0 (semver)
    cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-20 00:00
Credits
Aziz Elbelaychy (Ostorlab) Theo Buehler
Show details on NVD website
To clipboard 

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CVE-2026-116237 (GCVE-0-2026-116237)

Vulnerability from cvelistv5 – Published: 2026-10-26 09:15 – Updated: 2026-10-26 09:15
VLAI
Title
Oray Pugongying X5 Pro Dnsmasq crlf injection
Summary
A vulnerability was found in Oray Pugongying X5 Pro 7.6.1. This affects an unknown part of the component Dnsmasq. Performing a manipulation results in crlf injection. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
8.4 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
8.4 (High)
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3860 records in the last 180 days details
References
Impacted products
Vendor Product Version
Oray Pugongying X5 Pro Affected: 7.6.1
    cpe:2.3:a:oray:pugongying_x5_pro:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
FirmHarness (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-116235 (GCVE-0-2026-116235)

Vulnerability from cvelistv5 – Published: 2026-10-26 08:45 – Updated: 2026-10-26 16:33
VLAI
Title
Oray Pugongying X5 Pro L2TP Authentication crlf injection
Summary
A flaw has been found in Oray Pugongying X5 Pro 7.6.1. Affected by this vulnerability is an unknown functionality of the component L2TP Authentication. This manipulation of the argument Username causes crlf injection. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.1 (Critical)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 16:06 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3860 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/426284 vdb-entrytechnical-description
https://vuldb.com/vuln/426284/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-116235 third-party-advisory
https://vuldb.com/submit/1005083 third-party-advisory
https://app.notion.com/p/Oray-Pgyer-X5-Pro-Router… exploit
Impacted products
Vendor Product Version
Oray Pugongying X5 Pro Affected: 7.6.1
    cpe:2.3:a:oray:pugongying_x5_pro:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
FirmHarness (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

{
  "containers": {
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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-116235",
                "options": [
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          "tags": [
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          "url": "https://vuldb.com/cve/CVE-2026-116235"
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}

CVE-2026-116234 (GCVE-0-2026-116234)

Vulnerability from cvelistv5 – Published: 2026-10-26 08:30 – Updated: 2026-10-26 08:30
VLAI
Title
Oray Pugongying X5 Pro IPsec Policy ipsec.conf crlf injection
Summary
A vulnerability was detected in Oray Pugongying X5 Pro 7.6.1. Affected is an unknown function of the file /etc/ipsec.conf of the component IPsec Policy Handler. The manipulation of the argument secproto results in crlf injection. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.1 (Critical)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3860 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/426283 vdb-entrytechnical-description
https://vuldb.com/vuln/426283/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-116234 third-party-advisory
https://vuldb.com/submit/1005082 third-party-advisory
https://app.notion.com/p/Oray-Pgyer-X5-Pro-Router… exploit
Impacted products
Vendor Product Version
Oray Pugongying X5 Pro Affected: 7.6.1
    cpe:2.3:a:oray:pugongying_x5_pro:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
FirmHarness (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:oray:pugongying_x5_pro:*:*:*:*:*:*:*:*"
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        },
        {
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          "value": "VulDB CNA Team"
        }
      ],
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}

CVE-2026-116233 (GCVE-0-2026-116233)

Vulnerability from cvelistv5 – Published: 2026-10-26 08:15 – Updated: 2026-10-26 08:15
VLAI
Title
Oray Pugongying X5 Pro Dnsmasq crlf injection
Summary
A security vulnerability has been detected in Oray Pugongying X5 Pro 7.6.1. This impacts an unknown function of the component Dnsmasq. The manipulation of the argument rent_time leads to crlf injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.1 (Critical)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3860 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/426282 vdb-entrytechnical-description
https://vuldb.com/vuln/426282/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-116233 third-party-advisory
https://vuldb.com/submit/1005081 third-party-advisory
https://app.notion.com/p/Oray-Pgyer-X5-Pro-Router… exploit
Impacted products
Vendor Product Version
Oray Pugongying X5 Pro Affected: 7.6.1
    cpe:2.3:a:oray:pugongying_x5_pro:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
FirmHarness (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:oray:pugongying_x5_pro:*:*:*:*:*:*:*:*"
          ],
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          ],
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          "value": "VulDB CNA Team"
        }
      ],
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    "dateReserved": "2026-10-25T15:20:20.131Z",
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}

CVE-2026-116232 (GCVE-0-2026-116232)

Vulnerability from cvelistv5 – Published: 2026-10-26 08:00 – Updated: 2026-10-26 16:33
VLAI
Title
Oray Pugongying X5 Pro SNMP snmp_set crlf injection
Summary
A weakness has been identified in Oray Pugongying X5 Pro 7.6.1. This affects the function snmp_set of the component SNMP Handler. Executing a manipulation of the argument info.community can lead to crlf injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 16:06 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3860 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/426281 vdb-entrytechnical-description
https://vuldb.com/vuln/426281/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-116232 third-party-advisory
https://vuldb.com/submit/1005079 third-party-advisory
https://app.notion.com/p/Oray-Pgyer-X5-Pro-Router… exploit
Impacted products
Vendor Product Version
Oray Pugongying X5 Pro Affected: 7.6.1
    cpe:2.3:a:oray:pugongying_x5_pro:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
FirmHarness (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-116231 (GCVE-0-2026-116231)

Vulnerability from cvelistv5 – Published: 2026-10-26 07:45 – Updated: 2026-10-26 07:45
VLAI
Title
Oray Pugongying X5 Pro Ser2net crlf injection
Summary
A security flaw has been discovered in Oray Pugongying X5 Pro 7.6.1. The impacted element is an unknown function of the component Ser2net. Performing a manipulation of the argument regmsg results in crlf injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3860 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/426280 vdb-entrytechnical-description
https://vuldb.com/vuln/426280/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-116231 third-party-advisory
https://vuldb.com/submit/1005078 third-party-advisory
https://app.notion.com/p/Oray-Pgyer-X5-Pro-Router… exploit
Impacted products
Vendor Product Version
Oray Pugongying X5 Pro Affected: 7.6.1
    cpe:2.3:a:oray:pugongying_x5_pro:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
FirmHarness (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-115785 (GCVE-0-2026-115785)

Vulnerability from cvelistv5 – Published: 2026-10-23 13:50 – Updated: 2026-10-24 03:55
VLAI
Title
Zimbra Collaboration Suite Data Source Test SMTP Command Injection via Unsanitized Email Address
Summary
An SMTP command injection vulnerability in the data-source testing functionality of Zimbra Collaboration Suite (ZCS) allows an ordinary authenticated user with account options enabled to inject CR/LF into the emailAddress inserted into an SMTP envelope command by a JSON SOAP request. After a successful preliminary POP3 or IMAP login, Zimbra sends the injected commands to the selected SMTP service. If that service accepts the pipelined transaction, the attacker can submit mail with attacker-selected recipients, headers and body content without victim interaction. The vulnerable command-construction path is present in ZCS 10.1.16 and 10.1.20.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-23 00:00 UTC
CWE
  • CWE-93 - Improper neutralization of CRLF sequences ('CRLF injection')
Assigner
rapid7 CNA under the mitre root
CNA scorecard B 76/100 over 81 records in the last 180 days details
References
Impacted products
Vendor Product Version
Zimbra Zimbra Collaboration Suite Affected: 0 , ≤ 10.1.20 (semver)
Create a notification for this product.
Date Public
2026-10-23 13:47
Credits
Jonah Burgess (CryptoCat), Senior Security Researcher, Rapid7
Show details on NVD website
To clipboard 

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CVE-2026-114720 (GCVE-0-2026-114720)

Vulnerability from cvelistv5 – Published: 2026-10-22 01:32 – Updated: 2026-10-26 16:46
VLAI
Summary
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an IMAP command injection vulnerability. A remote authenticated attacker can exploit this via CRLF sequences injected into the _flag parameter of the mail/mark action to execute arbitrary IMAP commands. Upstream fixed this in the commit “Fix IMAP command injection via CRLF in `_flag` parameter of mail/mark action”, which rejects flags containing control, whitespace and IMAP-special characters.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 15:53 UTC
CWE
  • CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2267 records in the last 180 days details
References
Impacted products
Vendor Product Version
Roundcube Webmail Affected: 1.6.0 , < 1.6.20 (semver)
Affected: 1.7.0 , < 1.7.5 (semver)
    cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
    cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
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                "id": "CVE-2026-114720",
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                "role": "CISA Coordinator",
                "timestamp": "2026-10-26T15:53:05.922985Z",
                "version": "2.0.3"
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Mitigation
Implementation

Avoid using CRLF as a special sequence.

Mitigation
Implementation

Appropriately filter or quote CRLF sequences in user-controlled input.

CAPEC-15: Command Delimiters

An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or denylist input validation, as opposed to allowlist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or denylist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.

CAPEC-81: Web Server Logs Tampering

Web Logs Tampering attacks involve an attacker injecting, deleting or otherwise tampering with the contents of web logs typically for the purposes of masking other malicious behavior. Additionally, writing malicious data to log files may target jobs, filters, reports, and other agents that process the logs in an asynchronous attack pattern. This pattern of attack is similar to "Log Injection-Tampering-Forging" except that in this case, the attack is targeting the logs of the web server and not the application.

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