CVE-2026-68743
MEDIUM
NVD
CVSS Score
5.5
Severity
MEDIUM
Published
Aug 04, 2026
Vendor
unknown
Description
A flaw was found in SSSD. The extract_authtok_v1() function in the PAM responder does not validate the auth_token_length field against the remaining buffer size before processing. A local attacker can exploit this via a crafted protocol v1 request to the PAM responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.