What is CVE-2026-93007?

CVE-2026-93007 is a medium-severity vulnerability in Red Hat Ceph Storage 9, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-10-29.

How severe is CVE-2026-93007?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in Red Hat Ceph Storage 9

CVE-2026-93007

A flaw was found in dnsmasq. The TCP DNS service uses a small fixed pool of child processes and does not set a receive timeout on client connections. A remote attacker can open idle TCP connections to port 53 and occupy the entire pool, preventing new TCP DNS connections and DNSSEC validation that requires TCP fallback. UDP DNS resolution continues, and occupied slots are released after a fixed lifetime.

Vulnerability class: DoS (Denial of Service)

Published 2026-10-29 · last modified 2026-10-29.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

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-400 — Uncontrolled Resource Consumption

References

access.redhat.com/security/cve/CVE-2026-93007 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)

Frequently asked questions

What is CVE-2026-93007?: CVE-2026-93007 is a medium-severity vulnerability in Red Hat Ceph Storage 9, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-10-29.
How severe is CVE-2026-93007?: Medium severity. CVSS v3 base score is 5.3 out of 10.