Threats Tagged 'cve-2026-47775'
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Threats Tagged 'cve-2026-47775'
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CVE-2026-47775: CWE-209: Generation of Error Message Containing Sensitive Information in envoyproxy envoyCVE-2026-47775 0 Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, the OAuth2 HTTP filter's encrypt()/decrypt() functions use AES-256-CBC without an authentication tag (no HMAC, no AEAD). The /callback endpoint returns HTTP 302 on successful decryption and HTTP 401 on padding failure, creating a padding oracle. An attacker who obtains the encrypted CodeVerifier cookie can recover the plaintext PKCE code_verifier in ~6,200 requests (~100 seconds), then exchange it with a stolen authorization code to obtain the victim's access token. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1. Join the discussion | CVE Database V5 | 06/26/2026, 17:23:51 UTC Added: 06/26/2026, 18:12:30 UTC |
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