Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-88252
A flaw was found in sssd. A local user can cause a Denial of Service (DoS) by exhausting the responder service's available file descriptors (system handles used for open connections). By opening and maintaining many concurrent connections to a responder socket while continuing to queue new connection attempts, an attacker can trigger an unthrottled retry loop. This condition leads to high CPU utilization and stalls the service, preventing legitimate identity and authentication requests from being processed.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/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)
References
- access.redhat.com/security/cve/CVE-2026-88252 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
Frequently asked questions
- What is CVE-2026-88252?
- CVE-2026-88252 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 4.7/10. Published 2026-10-06.
- How severe is CVE-2026-88252?
- Medium severity. CVSS v3 base score is 4.7 out of 10.