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- Advisories
- 21 · 1 critical, 7 high, 3 medium, 1 low
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Advisories 21
- CVE-2026-123746Low 2.3
Symfony: Programmatic Logins Skip the checkPostAuth() Method of User Checkers
Affected: fixed in 5.4.56; from 6.0.0, fixed in 6.4.50; from 7.0.0, fixed in 7.4.23; from 8.0.0, fixed in 8.1.11.
- CVE-2026-118513High 7.7
Symfony: X.509 Authentication Impersonation via DN Value Injection (incomplete fix for CVE-2026-45063)
Affected: fixed in 5.4.56; from 6.0.0, fixed in 6.4.50; from 7.0.0, fixed in 7.4.23; from 8.0.0, fixed in 8.1.11.
- CVE-2026-48489High 8.7
Symfony: Security Firewall Bypass via failure_forward Subrequest: Unauthenticated Access to access_control-Protected GET Routes
Affected: fixed in 5.4.53; from 6.0.0, fixed in 6.4.41; from 7.0.0, fixed in 7.4.13; from 8.0.0, fixed in 8.0.13.
- CVE-2026-45069High 8.8
Symfony: OidcTokenHandler Accepts JWTs Missing aud/iss/exp Claims
Affected: from 6.3.0, fixed in 6.4.40; from 7.4.0, fixed in 7.4.12; from 8.0.0, fixed in 8.0.12.
- CVE-2026-45075High 8.3
Symfony: HEAD Request Bypasses methods: ['GET'] Filter in #[IsGranted] / #[IsSignatureValid] / #[IsCsrfTokenValid]
Affected: from 7.4.0, fixed in 7.4.12; from 8.0.0, fixed in 8.0.12.
- CVE-2026-45063Critical 9.1
Symfony: Identity Spoofing via Unanchored DN Regex in X509Authenticator
Affected: fixed in 5.4.52; from 6.0.0-BETA1, fixed in 6.4.40; from 7.0.0-BETA1, fixed in 7.4.12; from 8.0.0-BETA1, fixed in 8.0.12.
- CVE-2026-45074High 7.6
Symfony: Cas2Handler Derives CAS service URL from Client Host Header → Cross-Service Ticket Replay
Affected: from 7.1.0, fixed in 7.4.12; from 8.0.0, fixed in 8.0.12.
- CVE-2024-51996High 7.5
Symphony has an Authentication Bypass via RememberMe
Affected: from 5.3.0, fixed in 5.4.47; from 6.0.0-BETA1, fixed in 6.4.15; from 7.0.0-BETA1, fixed in 7.1.8.
- CVE-2023-46733Medium 6.5
Symfony possible session fixation vulnerability
Affected: from 5.4.21, fixed in 5.4.31; from 6.2.7, fixed in 6.3.8.
- CVE-2021-32693Medium 6.8
Authentication granted with multiple firewalls
Affected: from 5.3.0, fixed in 5.3.2.
- CVE-2021-21424Medium 5.3
Prevent user enumeration using Guard or the new Authenticator-based Security
Affected: from 5.1.0, fixed in 5.2.8.
- CVE-2020-5275High 7.6
Firewall configured with unanimous strategy was not actually unanimous in symfony/security-http
Affected: from 4.4.0, fixed in 4.4.7; from 5.0.0, fixed in 5.0.7.
- CVE-2019-18886Unrated
An issue was discovered in Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7.
Affected: from 4.1.0, fixed in 4.2.12; from 4.3.0, fixed in 4.3.8.
- CVE-2019-10911Unrated
In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, a vulnerability would allow…
Affected: from 2.7.0, fixed in 2.7.51; from 2.8.0, fixed in 2.8.50; from 3.0.0, fixed in 3.4.26; from 4.0.0, fixed in 4.1.12; from 4.2.0, fixed in 4.2.7.
- CVE-2018-19790Unrated
An open redirect was discovered in Symfony 2.7.x before 2.7.50, 2.8.x before 2.8.49, 3.x before 3.4.20, 4.0.x before 4.0.15, 4.1.x before…
Affected: from 2.7.38, fixed in 2.7.50; from 2.8.0, fixed in 2.8.49; from 3.0.0, fixed in 3.4.20; from 4.0.0, fixed in 4.0.15; from 4.1.0, fixed in 4.1.9; from 4.2.0, fixed in 4.2.1.
Show all 21 advisoriesShow fewer advisories
- CVE-2018-11406Unrated
An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before…
Affected: from 2.7.0, fixed in 2.7.48; from 2.8.0, fixed in 2.8.41; from 3.0.0, fixed in 3.3.17; from 3.4.0, fixed in 3.4.11; from 4.0.0, fixed in 4.0.11.
- CVE-2018-11385Unrated
An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before…
Affected: from 2.7.0, fixed in 2.7.48; from 2.8.0, fixed in 2.8.41; from 3.0.0, fixed in 3.3.17; from 3.4.0, fixed in 3.4.11; from 4.0.0, fixed in 4.0.11.
- CVE-2017-16652Unrated
An issue was discovered in Symfony 2.7.x before 2.7.38, 2.8.x before 2.8.31, 3.2.x before 3.2.14, and 3.3.x before 3.3.13.
Affected: from 2.7.0, fixed in 2.7.38; from 2.8.0, fixed in 2.8.31; from 3.2.0, fixed in 3.2.14; from 3.3.0, fixed in 3.3.13.
- CVE-2016-4423Unrated
The attemptAuthentication function in Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php in Symfony before…
Affected: from 2.3.0, fixed in 2.3.41; from 2.4.0, fixed in 2.7.13; from 2.8.0, fixed in 2.8.6; from 3.0.0, fixed in 3.0.6.
- CVE-2015-8125Unrated
Symfony 2.3.x before 2.3.35, 2.6.x before 2.6.12, and 2.7.x before 2.7.7 might allow remote attackers to have unspecified impact via a…
Affected: from 2.4.0, fixed in 2.6.12; from 2.7.0, fixed in 2.7.7.
- CVE-2015-8124Unrated
Session fixation vulnerability in the "Remember Me" login feature in Symfony 2.3.x before 2.3.35, 2.6.x before 2.6.12, and 2.7.x before…
Affected: from 2.4.0, fixed in 2.6.12; from 2.7.0, fixed in 2.7.7.