What is CVE-2026-68744?

CVE-2026-68744 is a low-severity vulnerability in Fedoraproject Sssd, classified under Use of Uninitialized Resource. CVSS score: 3.3/10. Published 2026-08-04.

How severe is CVE-2026-68744?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Fedoraproject Sssd

CVE-2026-68744

A flaw was found in SSSD. The sss_nss_protocol_fill_initgr() function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to disclose cached directory data and heap layout information from the sssd_nss process.

EPSS: 0.001 (0.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Fedoraproject Sssd
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Openshift Container Platform 4
Redhat Enterprise_linux — versions 10.0, 7.0, 8.0
Redhat Openshift_container_platform — versions 4.0

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2026-68744?: CVE-2026-68744 is a low-severity vulnerability in Fedoraproject Sssd, classified under Use of Uninitialized Resource. CVSS score: 3.3/10. Published 2026-08-04.
How severe is CVE-2026-68744?: Low severity. CVSS v3 base score is 3.3 out of 10.