PT-2024-34153 · Symfony+5 · Symfony/Validator+5

Offscriptian · Published 2024-08-13 · Updated 2025-07-01 · CVE-2024-50343

Positive Technologies (AI Summary)

CVSS v3.1

3.1

Low

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions: symfony/validator versions 5.4.43, 6.4.11, and 7.1.4

Description: The symfony/validator module in the Symphony PHP framework is vulnerable to a regex bypass issue. It is possible to trick a Validator configured with a regular expression using the $ metacharacters, with an input ending with . This issue can be exploited by providing a specially crafted input. Symfony now uses the D regex modifier to match the entire input.

Recommendations: For versions 5.4.43, 6.4.11, and 7.1.4, upgrade to a newer version that includes the patch for this issue. As a temporary workaround, consider configuring the Validator to use the D regex modifier to match the entire input until a patch is available.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2025-07864

CVE-2024-50343

DLA-4200-1

DSA-5809-1

GHSA-G3RH-RRHP-JHH9

USN-7272-1

Affected Products

Astra Linux

Debian

Linuxmint

Red Os

Ubuntu

Symfony/Validator

References · 39

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50343.json · Exploit
• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/validator/CVE-2024-50343.yaml · Exploit
• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2024-50343.yaml · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2024-50343 · Security Note
• https://ubuntu.com/security/CVE-2024-51996 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-24895 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2026-0518SE47 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50345 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5809-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50340 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-07864 · Security Note
• https://ubuntu.com/security/CVE-2022-24894 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-50343 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-50343 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4200-1 · Vendor Advisory