GHSA-cg23-qf8f-62rr
GitHub Security Advisory
Symfony has an Authentication Bypass via RememberMe
✓ GitHub Reviewed
HIGH
Has CVE
Advisory Details
### Description
When consuming a persisted remember-me cookie, Symfony does not check if the username persisted in the database matches the username attached with the cookie, leading to authentication bypass.
### Resolution
The `PersistentRememberMeHandler` class now ensures the submitted username is the cookie owner.
The patch for this issue is available [here](https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a) for branch 5.4.
### Credits
We would like to thank Moritz Rauch - Pentryx AG for reporting the issue and Jérémy Derussé for providing the fix.
Affected Packages
Packagist
symfony/security-http
Affected versions:
5.3.0
(fixed in 5.4.47)
Packagist
symfony/security-http
Affected versions:
6.0.0-BETA1
(fixed in 6.4.15)
Packagist
symfony/security-http
Affected versions:
7.0.0-BETA1
(fixed in 7.1.8)
Related CVEs
Key Information
7.5
/10
Dataset
Last updated: September 13, 2025 6:30 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.