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Medium

Symfony Incorrect Access Control

  • Disclosed: 17.05.2022
  • Updated: 11.10.2026 10:22

FragmentListener in the HttpKernel component in Symfony 2.3.19 through 2.3.28, 2.4.9 through 2.4.10, 2.5.4 through 2.5.11, and 2.6.0 through 2.6.7, when ESI or SSI support enabled, does not check if the _controller attribute is set, which allows remote attackers to bypass URL signing and security rules by including (1) no hash or (2) an invalid hash in a request to /_fragment.

This issue has been fixed in Symfony 2.3.29, 2.5.12, and 2.6.8. Note that no fixes are provided for Symfony 2.4 as it's not maintained anymore.

Affected software

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PlatformPackageVulnerable versionsFixed in
Composer package symfony/http-kernel >= 2.3.19, < 2.3.29, >= 2.5.4, < 2.5.12, >= 2.6.0, < 2.6.8, >= 2.4.9, <= 2.4.10 2.3.29, 2.5.12, 2.6.8
Composer package symfony/symfony >= 2.3.19, < 2.3.29, >= 2.4.9, <= 2.4.10, >= 2.5.4, < 2.5.12, >= 2.6.0, < 2.6.8 2.3.29, 2.5.12, 2.6.8

References

CVSS score -
Weakness (CWE)
CWE-284
Platform
Composer
Package
symfony/http-kernel, symfony/symfony
Disclosed
17.05.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-qmqw-mpqp-mr54 - CC BY 4.0

Vulnerability history: symfony/http-kernel

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
8
First → latest
09.2020 05.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 4
  • Medium 4

Disclosures per year

  1. Symfony's HEAD Request Bypasses methods: ['GET'] Filter in #[IsGranted] / #[IsSignatureValid] / #[IsCsrfTokenValid]
    High CVE-2026-45075 >= 7.4.0, < 7.4.12, >= 8.0.0, < 8.0.12 7.4.12, 8.0.12
  2. Symfony allows direct access of ESI URLs behind a trusted proxy
    High · 7.5 CVE-2014-5245 >= 2.0.0, < 2.3.19, >= 2.4.0, < 2.4.9, >= 2.5.0, < 2.5.4 2.3.19, 2.4.9, 2.5.4
  3. Symfony storing cookie headers in HttpCache
    Medium · 5.9 CVE-2022-24894 >= 2.0.0, < 4.4.50, >= 5.0.0, < 5.4.20, >= 6.0.0, < 6.0.20, >= 6.1.0, < 6.1.12, >= 6.2.0, < 6.2.6 4.4.50, 5.4.20, 6.0.20, 6.1.12, 6.2.6
  4. Symfony Vulnerable to PHP Eval Injection
    Medium CVE-2015-2308 >= 2.0.0, < 2.3.27, >= 2.4.0, < 2.5.11, >= 2.6.0, < 2.6.6 2.3.27, 2.5.11, 2.6.6
  5. Symfony Incorrect Access Control this entry
    Medium CVE-2015-4050 >= 2.3.19, < 2.3.29, >= 2.5.4, < 2.5.12, >= 2.6.0, < 2.6.8, >= 2.4.9, <= 2.4.10 2.3.29, 2.5.12, 2.6.8
  6. Symfony Http-Kernel has non-constant time comparison in UriSigner
    High · 8.1 CVE-2019-18887 >= 2.2.0, < 2.8.52, >= 3.0.0, < 3.4.35, >= 4.0.0, < 4.2.12, >= 4.3.0, < 4.3.8 2.8.52, 3.4.35, 4.2.12, 4.3.8
  7. Webcache Poisoning in symfony/http-kernel
    Medium · 6.5 CVE-2021-41267 >= 5.2.0, < 5.3.12 5.3.12
  8. RCE in Symfony
    High · 8.0 CVE-2020-15094 >= 4.3.0, < 4.4.13, >= 5.0.0, < 5.1.5 4.4.13, 5.1.5

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