Packagist/symfony/yaml CVE-2026-45305: low, EPSS 0.68%
Symfony's YAML Parser has a ReDoS via Catastrophic Backtracking in Parser::cleanup() Regex
Action: Upgrade symfony/yaml to 5.4.52 or later.
composer require symfony/yaml:5.4.52composer require symfony/yaml:6.4.40composer require symfony/yaml:7.4.12composer require symfony/yaml:8.0.12Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 5.4.52 | - |
| 6.0.0 | 6.4.40 | - |
| 7.0.0 | 7.4.12 | - |
| 8.0.0 | 8.0.12 | - |
Fixed versions
| 5.4.52 | 6.4.40 | 7.4.12 | 8.0.12 |
Sources
- osv: GHSA-9frc-8383-795m
- https://github.com/symfony/symfony/security/advisories/GHSA-9frc-8383-795m
- https://github.com/symfony/symfony/commit/9749cd43c5e09b3735093623670b21b9d8a056cb
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45305.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/yaml/CVE-2026-45305.yaml
- https://github.com/symfony/symfony
- https://symfony.com/cve-2026-45305
CVE-2026-45305 · published · modified · JSON