Is symfony/security-http 5.4 vulnerable?

Composer · 35 releases from 5.4.0 to 5.4.54 · latest symfony/security-http is 8.1.10 · checked 1 Nov 2026

No known advisories in the last release

symfony/security-http 5.4.54, the last 5.4 release, has no known advisories. 4 advisories affect earlier 5.4.x releases, so update to 5.4.54.

Update within 5.4:composer require symfony/security-http:^5.4.54

Is your project affected?

Private repo? Upload its lockfile instead, or connect GitHub to check every repo.

Fixed within 5.4.x, affecting earlier releases

  • HighCVE-2026-48489GHSA-6h46-9jf5-q59x15 Jun 2026

    Symfony: Security Firewall Bypass via failure_forward Subrequest: Unauthenticated Access to access_control-Protected GET Routes

    Affected
    <5.4.53 · >=6.0.0 <6.4.41 · >=7.0.0 <7.4.13 · >=8.0.0 <8.0.13
    Fixed in
    5.4.53, 6.4.41, 7.4.13, 8.0.13
  • HighCVE-2026-45063GHSA-ph86-p8f6-f9r227 May 2026

    Symfony Vulnerable to Identity Spoofing via Unanchored DN Regex in X509Authenticator

    Affected
    <5.4.52 · >=6.0.0-BETA1 <6.4.40 · >=7.0.0-BETA1 <7.4.12 · >=8.0.0-BETA1 <8.0.12
    Fixed in
    5.4.52, 6.4.40, 7.4.12, 8.0.12
  • HighCVE-2024-51996GHSA-cg23-qf8f-62rr13 Nov 2024

    Symfony has an Authentication Bypass via RememberMe

    Affected
    >=5.3.0 <5.4.47 · >=6.0.0-BETA1 <6.4.15 · >=7.0.0-BETA1 <7.1.8
    Fixed in
    5.4.47, 6.4.15, 7.1.8
  • MediumCVE-2023-46733GHSA-m2wj-r6g3-fxfx12 Nov 2023

    Symfony possible session fixation vulnerability

    Affected
    >=5.4.21 <5.4.31 · >=6.2.7 <6.3.8
    Fixed in
    5.4.31, 6.3.8

Which of your client projects are still on symfony/security-http 5.4?

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Other symfony/security-http versions

Advisory data from OSV.dev (opens OSV.dev in a new tab), which includes the GitHub Advisory Database. Release list from the Composer registry. Refreshed daily.