kin-openapi openapi3filter: nil-pointer panic in ValidateResponse on a response header declared with content
High-risk advisory
CVE-2026-100349
Summary
kin-openapi openapi3filter: nil-pointer panic in ValidateResponse on a response header declared with content
Why it matters
GitHub has published a reviewed security advisory for github.com/getkin/kin-openapi. Prioritize it with other application dependency updates, especially because EPSS places it in the 29% percentile.
Operator check
Check whether github.com/getkin/kin-openapi is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.2. EPSS probability: 0.4%; percentile: 29%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.