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SCA: security update for symfony/security-http, symfony/symfony (GHSA-ph86-p8f6-f9r2)

critical Tenable Cloud Security Plugin ID 442394

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to
 5.4.52, 6.4.40, 7.4.12, and 8.0.12, X509Authenticator extracts the user identifier from
 $_SERVER['SSL_CLIENT_S_DN'] with an unanchored regex that matches emailAddress= anywhere in the
 distinguished name, allowing an attacker with a trusted certificate containing emailAddress=victim inside
 another RDN value such as CN to authenticate as the victim. This issue is fixed in versions 5.4.52,
 6.4.40, 7.4.12, and 8.0.12. (CVE-2026-45063)

Solution

Update the symfony/security-http library and its related packages to version 5.4.52 or later.

See Also

https://github.com/advisories/GHSA-ph86-p8f6-f9r2

Plugin Details

Severity: Critical

ID: 442394

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 5/27/2026

Updated: 7/16/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.7

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-45063

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.1

Threat Score: 6.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/27/2026

Vulnerability Publication Date: 5/27/2026

Reference Information

CVE: CVE-2026-45063

cwe: CWE-290