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.

• CWE-908

• https://access.redhat.com/security/cve/CVE-2026-68744Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2509761Issue Tracking, Vendor Advisory

Published

Aug 4, 2026

Last Modified

Aug 31, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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