CVE Catalog

CVE-2026-89316

MediumCVSS 6.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

11th percentile - higher than 11% of all known CVEs

Summary

LoadPublicKey resolved an EC key's curve with an unchecked type assertion, algToOptsMap[alg].(*ECDSAOptions). A JWK declaring "kty":"EC" together with a non-EC "alg" — which RFC 7517 §4.4 permits — reaches that assertion and panics.

Risk Assessment

A malicious JWK can trigger a panic and crash the key-processing service, leading to denial of service.

Recommendation

Update the library to a version containing the fix that checks the type assertion.

Related vulnerabilities

Original NVD description (English source)

`LoadPublicKey` resolved an EC key's curve with an unchecked type assertion, `algToOptsMap[alg].(*ECDSAOptions)`. A JWK declaring `"kty":"EC"` together with a non-EC `"alg"` — which RFC 7517 §4.4 permits — reaches that assertion and **panics**.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS