Zurück zur CVE-Übersicht
CVE-2026-87853
HIGH(7.5)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Risk Signal Score19/100 — NIEDRIG
- CVSS 7.5 — Hoch
Erwähnungen (letzte 60 Tage)
Artikel
EPSS-Score
0.3%
Exploit-Wahrscheinlichkeit (30 Tage)
CVSS Score
7.5
Technische Schwere
Beschreibung
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.