SSRF in Openidc Liboauth2

CVE-2026-54430

liboauth2 is vulnerable to Server-Side Request Forgery in oauth2_jose_jwks_aws_alb_resolve() function. The AWS ALB verifier reads both signer and kid from the unverified JWT header. If signer matches the configured ARN, kid is appended to …

Vulnerability class: SSRF (Server-Side Request Forgery)

Affected products

Weakness classification (CWE)

References