CVE-2026-68743
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Fedoraproject Sssd
PublishedAug 4, 2026
First seenAug 4, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fedoraproject sssd | No range specified | — |
| redhat openshift_container_platform | 4.0 | — |
| redhat enterprise_linux | 7.0, 8.0, 9.0, 10.0 | — |
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