CVE-2026-68743

Published: Aug 4, 2026Modified: Aug 31, 2026

7.1

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Exploitability: 1.8 / Impact: 5.2

Source: NVD

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.

Affected (6)

Products: Fedoraproject: Sssd · Redhat: Enterprise Linux, Openshift Container Platform

1 product

2 products

Openshift Container Platform

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Sssd	All versions
Redhat Enterprise Linux	Version 10.0
Redhat Enterprise Linux	Version 7.0
Redhat Enterprise Linux	Version 8.0
Redhat Enterprise Linux	Version 9.0
Redhat Openshift Container Platform	Version 4.0

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (2)

https://access.redhat.com/security/cve/CVE-2026-68743

Source: secalert@redhat.com

Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2509760

Source: secalert@redhat.com

Issue TrackingVendor Advisory

Timeline

No history available yet.