USN-8934-1 pyjwt vulnerabilities

Kingsley Olukanni discovered that PyJWT did not properly handle unknown key identifiers when retrieving signing keys. An attacker could possibly use this issue to amplify requests to the configured key endpoint, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu...

GHSA-X33G-CR3X-6449 PyJWT accepts inconsistent OKP x/d JWKs, causing public/private key identity confusion

Summary PyJWT accepts internally inconsistent OKP private JWKs where the declared public key x does not correspond to the supplied private key d. When d is present, OKPAlgorithm.fromjwk constructs the Ed25519/Ed448 private key from d without verifying that the public key derived from d matches x...

PyJWT accepts inconsistent OKP x/d JWKs, causing public/private key identity confusion

Summary PyJWT accepts internally inconsistent OKP private JWKs where the declared public key x does not correspond to the supplied private key d. When d is present, OKPAlgorithm.fromjwk constructs the Ed25519/Ed448 private key from d without verifying that the public key derived from d matches x...