Crossplane's TOCTOU between cosign verification and image fetch in xpkg.CachedClient allows tag-based package install...
High-risk advisory
Summary
Crossplane's TOCTOU between cosign verification and image fetch in xpkg.CachedClient allows tag-based package install to bypass signature check
Why it matters
GitHub has published a reviewed security advisory for github.com/crossplane/crossplane-runtime/v2. Prioritize it with other application dependency updates.
Operator check
Check whether github.com/crossplane/crossplane-runtime/v2 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.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.