Grav: Unauthenticated denial of service via unbounded image derivative dimensions
High-risk advisory
CVE-2026-53653
Summary
Grav: Unauthenticated denial of service via unbounded image derivative dimensions
Why it matters
GitHub has published a reviewed security advisory for getgrav/grav. Prioritize it with other application dependency updates, especially because EPSS places it in the 23% percentile.
Operator check
Check whether getgrav/grav is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.7. EPSS probability: 0.3%; percentile: 23%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.