critical
CVE-2026-45063
Symfony is a PHP framework for web and console applications and a set ...
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
GHSA8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by GHSA (high).
Description
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.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| composer::GitHub Security Advisory Composer | symfony/security-http, symfony/symfony | 5.4.52, 6.4.40, 7.4.12, 8.0.12 |
| composer::PHP Security Advisories Database | symfony/security-http, symfony/symfony | no fix listed |
| debian 11 | symfony | no fix listed |
| debian 12 | symfony | 5.4.53+dfsg-0+deb12u1 |
| debian 13 | symfony | 6.4.41+dfsg-0+deb13u1 |
| debian 14 | symfony | 7.4.12+dfsg-1 |
| echo | symfony | 5.4.53+dfsg-0+deb12u1 |
| rapidfort debian 12 | symfony | 0:6.4.41+dfsg-0+deb13u1, 0:7.4.12+dfsg-1 |
| rapidfort debian 13 | symfony | 0:6.4.41+dfsg-0+deb13u1, 0:7.4.12+dfsg-1 |
Show all 11 entries from 9 sources
| Source | Package | Fixed in |
|---|---|---|
| composer::GitHub Security Advisory Composer | symfony/security-http | 5.4.52, 6.4.40, 7.4.12, 8.0.12 |
| composer::GitHub Security Advisory Composer | symfony/symfony | 5.4.52, 6.4.40, 7.4.12, 8.0.12 |
| composer::PHP Security Advisories Database | symfony/security-http | no fix listed |
| composer::PHP Security Advisories Database | symfony/symfony | no fix listed |
| debian 11 | symfony | no fix listed |
| debian 12 | symfony | 5.4.53+dfsg-0+deb12u1 |
| debian 13 | symfony | 6.4.41+dfsg-0+deb13u1 |
| debian 14 | symfony | 7.4.12+dfsg-1 |
| echo | symfony | 5.4.53+dfsg-0+deb12u1 |
| rapidfort debian 12 | symfony | 0:6.4.41+dfsg-0+deb13u1, 0:7.4.12+dfsg-1 |
| rapidfort debian 13 | symfony | 0:6.4.41+dfsg-0+deb13u1, 0:7.4.12+dfsg-1 |
References
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2026-45063.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45063.yaml
- https://github.com/symfony/symfony
- https://github.com/symfony/symfony/commit/59ef484029601a7af06f5e06c6ed921fdcea5a0d
- https://github.com/symfony/symfony/commit/ccb3f724c7ff55670a6fe3521c7bf1514cceb478
- https://github.com/symfony/symfony/releases/tag/v5.4.52
- https://github.com/symfony/symfony/releases/tag/v6.4.40
- https://github.com/symfony/symfony/releases/tag/v7.4.12