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Medium · 6.3 CVE-2026-89316 EUVD-2026-108648

LoadPublicKey panics on kty/alg mismatch (kty=EC with a non-EC alg) via unchecked *ECDSAOptions type assertion

Published Oct 23, 2026 · Updated Nov 2, 2026 · Assigned by eclipse

Description

`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**.

Affected products

VendorProductAffectedFixed
Eclipse Foundation Eclipse KeyPont - GOSE 0.7.3 – ≤ 0.13.0-rc1, < 1.0.0-rc4 1.0.0-rc4

References