high7.5
CVE-2026-45756
Symfony's JsonPath Evaluates Attacker-Controlled Regular Expressions in match()/search() Without Limits — ReDoS
Impact
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
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | symfony/json-path | >= 7.3.0, < 7.4.12 | 7.4.12 |
| composer | symfony/symfony | >= 7.3.0, < 7.4.12 | 7.4.12 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Sensiolabs | Symfony | from 7.3.0 before 7.4.12 from 8.0.0 before 8.0.12 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-8v8v-g73j-492j
- https://github.com/symfony/symfony/security/advisories/GHSA-8v8v-g73j-492j
- https://github.com/symfony/symfony/commit/1ac2d47418ec23066112db1e6ca35be6fe123d14
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/json-path/CVE-2026-45756.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45756.yaml
- https://symfony.com/cve-2026-45756
- https://github.com/symfony/symfony/releases/tag/v7.4.12
- https://github.com/symfony/symfony/releases/tag/v8.0.12