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Crossplane's TOCTOU between cosign verification and image fetch in xpkg.CachedClient allows tag-based package install to bypass signature check

🗓️ 27 Aug 2026 17:25:25Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 10 Views

TOCTOU in Crossplane xpkg.CachedClient allows tag-based install to bypass cosign signature check.

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