CVE-2026-54430 Server-Site Request Forgery in liboauth2

liboauth2 is vulnerable to Server-Side Request Forgery in oauth2josejwksawsalbresolve 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 albbaseurl without URL encoding or path sanitization, and the HTT...