CVE-2026-89313 — JwksTrustStore.Get returns the last fetched JWKS key (err=nil) when the requested kid is absent, instead of nil
`JwksTrustStore.Get` assigned each parsed key to the function's **named return value** while refreshing the JWKS cache. When the requested `kid` was not present, the trailing na…
Published: 2026-10-23 · CVSS: 6.3 · CVSS 4.0
`JwksTrustStore.Get` assigned each parsed key to the function's **named return value** while refreshing the JWKS cache. When the requested `kid` was not present, the trailing naked `return` handed the caller the last key in the JWKS document together with a `nil` error — a confidently wrong answer instead of "not found".
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7