UBUNTU-CVE-2026-45756

HIGH8.3

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.3.0-BETA1 until 7.4.12 and 8.0.12, the JsonPath component compiles attacker-controlled match()

Published Jul 14, 2026

Modified 1 months ago

Details

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.3.0-BETA1 until 7.4.12 and 8.0.12, the JsonPath component compiles attacker-controlled match() and search() filter patterns directly into preg_match() without a length cap, i-regexp restriction, or bounded backtracking, allowing catastrophic-backtracking expressions to pin worker CPU and cause denial of service. This issue is fixed in versions 7.4.12 and 8.0.12.

Affected Packages

symfony

Ubuntu 16.04 LTS

Affected versions:

2.7.1+dfsg-12.7.10-0ubuntu22.7.5+dfsg-12.7.9+dfsg-12.7.9+dfsg-1ubuntu2

symfony

Ubuntu 25.10

Affected versions:

6.4.18+dfsg-1ubuntu16.4.21+dfsg-26.4.21+dfsg-2ubuntu16.4.24+dfsg-1

References

REPORT

https://symfony.com/blog/cve-2026-45756-jsonpath-evaluates-attacker-controlled-regular-expressions-in-match-search-without-limits-redos