CVE-2026-45756

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.

• CWE-400
• CWE-1333

• https://github.com/symfony/symfony/commit/1ac2d47418ec23066112db1e6ca35be6fe123d14Patch
• https://github.com/symfony/symfony/releases/tag/v7.4.12Product, Release Notes
• https://github.com/symfony/symfony/releases/tag/v8.0.12Product, Release Notes
• https://github.com/symfony/symfony/security/advisories/GHSA-8v8v-g73j-492jPatch, Vendor Advisory

Published

Jul 14, 2026

Last Modified

Jul 21, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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