CVE-2026-45756

HIGH8.2

Symfony: JsonPath Evaluates Attacker-Controlled Regular Expressions in match()/search() Without Limits — ReDoS

Published Jul 14, 2026

Modified Yesterday

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.

References

WEB

https://github.com/symfony/symfony/commit/1ac2d47418ec23066112db1e6ca35be6fe123d14

WEB

https://github.com/symfony/symfony/releases/tag/v7.4.12

WEB

https://github.com/symfony/symfony/releases/tag/v8.0.12

WEB

https://github.com/symfony/symfony/security/advisories/GHSA-8v8v-g73j-492j

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-45756

CVSS Analysis