Yüksek CVSS 7.5
CVE-2026-87853: CVE-2026-87853: güvenlik açığı
Açıklama (NVD)
A flaw was found in SSSD's IdP authentication provider. The eval_access_token_buf() function compares the OIDC subject identifier using strncmp() with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix of a target user's identifier can authenticate as the target user.
Özet bilgiler
- CVSS v3.1
- 7.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- %0,33 (yüzdelik 26)
- CWE
- CWE-187
- Yama
- Yok / bilinmiyor