What is CVE-2026-104035?

CVE-2026-104035 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.5/10. Published 2026-10-06.

How severe is CVE-2026-104035?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2026-104035

A flaw was found in SSSD. An issue in the Kerberos Credential Manager (KCM) responder allows a local user to cause a Denial of Service (DoS) by maintaining a persistent connection and repeatedly storing and destroying credentials. Because the service fails to release cached objects from memory when credentials are removed, memory consumption grows continuously, ultimately exhausting available memory and rendering the service unresponsive.

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

References

access.redhat.com/security/cve/CVE-2026-104035 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)

Frequently asked questions

What is CVE-2026-104035?: CVE-2026-104035 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.5/10. Published 2026-10-06.
How severe is CVE-2026-104035?: Medium severity. CVSS v3 base score is 5.5 out of 10.