CVE-2026-68743
Medium · 5.5CVSS
5.5
EPSS
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Published
Aug 4, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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