CVE-2026-81892

{"id": "CVE-2026-81892", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-81892", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-09-03T17:59:10.289252Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "EasyCorp", "product": "EasyAdminBundle", "versions": [{"status": "affected", "version": ">= 4.0.0, < 4.29.16"}, {"status": "affected", "version": ">= 5.0.0, < 5.5.1"}]}]}], "published": "2026-08-31T21:17:52.927", "references": [{"url": "https://github.com/EasyCorp/EasyAdminBundle/commit/03be45c6b7213c4c984a1d0542b7ec60359329f8", "source": "security-advisories@github.com"}, {"url": "https://github.com/EasyCorp/EasyAdminBundle/commit/6228dfef598d81eeb0baa35625e50812f3c77699", "source": "security-advisories@github.com"}, {"url": "https://github.com/EasyCorp/EasyAdminBundle/releases/tag/v4.29.16", "source": "security-advisories@github.com"}, {"url": "https://github.com/EasyCorp/EasyAdminBundle/releases/tag/v5.5.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/EasyCorp/EasyAdminBundle/security/advisories/GHSA-g2fm-8hr4-j82h", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-639"}, {"lang": "en", "value": "CWE-862"}, {"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "EasyAdmin is a fast and modern admin generator for Symfony applications. From 4.0.0 until 4.29.16 and 5.5.1, EasyAdmin serves all backend requests through a single dashboard route and, for custom actions (Action::linkToRoute() and MenuItem::linkToRoute()), swaps the executed controller based on the routeName query parameter on the kernel.controller event. The swap happens after Symfony's security firewall has already evaluated access_control against the original dashboard URL, and the routeName value was not validated. As a result, a path-based access_control rule protecting the target route was never evaluated, so a low-privilege backend user who can reach a single EasyAdmin URL and knows a target route's name can execute that route's controller, bypassing the path-based rule. Only path-based protections are bypassed. Routes whose controller enforces its own authorization with #[IsGranted] or denyAccessUnlessGranted() remain protected because those checks are recomputed against the swapped-in controller. This issue is fixed in versions 4.29.16 and 5.5.1."}], "lastModified": "2026-09-09T21:09:13.080", "sourceIdentifier": "security-advisories@github.com"}