CVE-2026-68744CWE-908

CVE-2026-68744

Low · published August 4, 2026

CVSS v3.1
3.3
EPSS
0%
Percentile
2.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.3 · LOW
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00133 · 2.6th percentile
Weakness
CWE-908 · Use of Uninitialized Resource
Published
2026-08-04T10:16Z
Affected products (6)
ProductVersionsFixed in
fedoraproject/sssdall versions—
redhat/openshift_container_platformall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
References (2)
https://access.redhat.com/security/cve/CVE-2026-68744 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2509761 · [email protected]
EPSS history
Timeline
  • 04 AUG 05:28Z
    Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply
    cvelistv5