Improper Input Validation Affecting symfony package, versions <5.4.4+dfsg-1ubuntu8+esm1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2204-SYMFONY-8348572
- published1 Jun 2025
- disclosed6 Nov 2024
Introduced: 6 Nov 2024
CVE-2024-50343 (opens in a new tab)How to fix?
Upgrade Ubuntu:22.04 symfony to version 5.4.4+dfsg-1ubuntu8+esm1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream symfony package and not the symfony package as distributed by Ubuntu.
See How to fix? for Ubuntu:22.04 relevant fixed versions and status.
symfony/validator is a module for the Symphony PHP framework which provides tools to validate values. It is possible to trick a Validator configured with a regular expression using the $ metacharacters, with an input ending with \n. Symfony as of versions 5.4.43, 6.4.11, and 7.1.4 now uses the D regex modifier to match the entire input. Users are advised to upgrade. There are no known workarounds for this vulnerability.