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Vulnerability record · CVE-2026-104029 · published 5 October 2026

CVE-2026-104029: Fedoraproject sssd out-of-bounds read vulnerability

Fedoraproject · Sssd

A flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS).

5.5 CVSS 3.1 Medium EPSS 0.13% · top 97.4% CWE-125 · Out-of-bounds read
5.5CVSS 3.1 base score
0.13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
2References, 1 tagged exploit
6 Nov 2026Last modified by NVD

Description

A flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS).

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2026-104029 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2479444 ExploitIssue TrackingMitigationVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-104029), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.