High severity7.5NVD Advisory· Published Jul 14, 2026· Updated Jul 15, 2026
CVE-2026-45071
CVE-2026-45071
Description
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 packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
symfony/dom-crawlerPackagist | < 5.4.52 | 5.4.52 |
symfony/symfonyPackagist | < 5.4.52 | 5.4.52 |
symfony/dom-crawlerPackagist | >= 6.0.0, < 6.4.40 | 6.4.40 |
symfony/dom-crawlerPackagist | >= 7.0.0, < 7.4.12 | 7.4.12 |
symfony/dom-crawlerPackagist | >= 8.0.0, < 8.0.12 | 8.0.12 |
symfony/symfonyPackagist | >= 6.0.0, < 6.4.40 | 6.4.40 |
symfony/symfonyPackagist | >= 7.0.0, < 7.4.12 | 7.4.12 |
symfony/symfonyPackagist | >= 8.0.0, < 8.0.12 | 8.0.12 |
Affected products
2- osv-coords2 versions
< 33.0.5-r2+ 1 more
- (no CPE)range: < 33.0.5-r2
- (no CPE)range: < 33.0.5-r2
Patches
Vulnerability mechanics
References
10- github.com/symfony/symfony/commit/eea5fd7488cbdc241da4ce242344b7d9a3ecdf3dnvdPatchWEB
- github.com/symfony/symfony/security/advisories/GHSA-x6g4-fwcc-jj8wnvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-x6g4-fwcc-jj8wghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/dom-crawler/CVE-2026-45071.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45071.yamlghsaWEB
- github.com/symfony/symfony/releases/tag/v5.4.52nvdProductRelease Notes
- github.com/symfony/symfony/releases/tag/v6.4.40nvdProductRelease Notes
- github.com/symfony/symfony/releases/tag/v7.4.12nvdProductRelease Notes
- github.com/symfony/symfony/releases/tag/v8.0.12nvdProductRelease Notes
- symfony.com/cve-2026-45071ghsaWEB
News mentions
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