CVE-2026-45071
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Summary
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Crawler::addXmlContent() set DOMDocument::$validateOnParse = true before loadXML(), re-enabling external entity resolution and allowing attacker-supplied XML to expand file:// entities such as local files. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| symfony | symfony | < 5.4.52 | affected |
| symfony | symfony | >= 6.0.0-BETA1, < 6.4.40 | affected |
| symfony | symfony | >= 7.0.0-BETA1, < 7.4.12 | affected |
| symfony | symfony | >= 8.0.0-BETA1, < 8.0.12 | affected |
| symfony | dom-crawler | < 5.4.52 | affected |
| symfony | dom-crawler | >= 6.0.0-BETA1, < 6.4.40 | affected |
| symfony | dom-crawler | >= 7.0.0-BETA1, < 7.4.12 | affected |
| symfony | dom-crawler | >= 8.0.0-BETA1, < 8.0.12 | affected |
Weaknesses
- CWE-611: CWE-611: Improper Restriction of XML External Entity Reference
References
- https://github.com/symfony/symfony/security/advisories/GHSA-x6g4-fwcc-jj8w
- https://github.com/symfony/symfony/commit/eea5fd7488cbdc241da4ce242344b7d9a3ecdf3d
- https://github.com/symfony/symfony/releases/tag/v5.4.52
- https://github.com/symfony/symfony/releases/tag/v6.4.40
- https://github.com/symfony/symfony/releases/tag/v7.4.12
- https://github.com/symfony/symfony/releases/tag/v8.0.12
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