CVE-2026-45063
9.1
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| symfony | symfony | < 5.4.52 | affected |
| symfony | symfony | >= 6.0.0-BETA1, < 6.4.40 | affected |
| symfony | symfony | >= 7.0.0-BETA1, < 7.4.12 | affected |
| symfony | symfony | >= 8.0.0-BETA1, < 8.0.12 | affected |
Weaknesses
- CWE-290: CWE-290: Authentication Bypass by Spoofing
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://github.com/symfony/symfony/security/advisories/GHSA-ph86-p8f6-f9r2
- https://github.com/symfony/symfony/commit/59ef484029601a7af06f5e06c6ed921fdcea5a0d
- 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
- https://github.com/symfony/symfony/releases/tag/v8.0.12
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