High severity7.5OSV Advisory· Published Jul 14, 2026· Updated Jul 21, 2026
CVE-2026-45756
CVE-2026-45756
Description
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
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
symfony/json-pathPackagist | >= 7.3.0, < 7.4.12 | 7.4.12 |
symfony/json-pathPackagist | >= 8.0.0, < 8.0.12 | 8.0.12 |
symfony/symfonyPackagist | >= 7.3.0, < 7.4.12 | 7.4.12 |
symfony/symfonyPackagist | >= 8.0.0, < 8.0.12 | 8.0.12 |
Affected products
3v8.0.11, v7.4.11, v8.0.10, …+ 1 more
- (no CPE)range: v8.0.11, v7.4.11, v8.0.10, …
- (no CPE)range: 7.3.0-BETA1 <= versions < 7.4.12, 8.0.12
- Range: 7.3.0-BETA1 <= versions < 7.4.12, 8.0.12
Patches
Vulnerability mechanics
References
8- github.com/symfony/symfony/commit/1ac2d47418ec23066112db1e6ca35be6fe123d14nvdPatchWEB
- github.com/symfony/symfony/security/advisories/GHSA-8v8v-g73j-492jnvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-8v8v-g73j-492jghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/json-path/CVE-2026-45756.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45756.yamlghsaWEB
- github.com/symfony/symfony/releases/tag/v7.4.12nvdProductRelease Notes
- github.com/symfony/symfony/releases/tag/v8.0.12nvdProductRelease Notes
- symfony.com/cve-2026-45756ghsaWEB
News mentions
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