CVE-2026-47775

Envoy OAuth2 filter vulnerability (CVE-2026-47775): prior to versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1, the encrypt()/decrypt() path uses AES-256-CBC without an authentication tag (no HMAC/AEAD), enabling a padding oracle via the /callback endpoint. An attacker with the encrypted CodeVerifier ...