Orta CVSS 6.8 PoC var
CVE-2026-47775: Envoy: güvenlik açığı
Açıklama (NVD)
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.
Özet bilgiler
- Ürün
- Envoyproxy Envoy
- CVSS v3.1
- 6.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - EPSS
- %0,22 (yüzdelik 12)
- CWE
- CWE-209
- Yama
- Geçici çözüm
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| envoyproxy-envoy | 1.35.0 | — | 1.35.11 |
| envoyproxy-envoy | 1.36.0 | — | 1.36.7 |
| envoyproxy-envoy | 1.37.0 | — | 1.37.3 |
| envoyproxy-envoy | 1.38.0 | — | 1.38.1 |