CVE-2026-93010 — Dnsmasq: dnsmasq: --leasequery without address argument applies no source address check

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

1. Identify exposed assets running the affected vendor/product/version combinations (Red Hat Red Hat Ceph Storage 9, Red Hat Red Hat Enterprise Linux 10, Red Hat Red Hat Enterprise Linux 6…).
2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
3. Search available logs for exploit probes matching the vulnerability class (access control), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-862 · Missing Authorization

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

• Audit administrative actions and access to resources outside each user’s normal pattern.

Timeline

What happened to this CVE, newest first.

• 2026
• Affected products added · red hat/red hat openshift container platform 5
  Oct 30, 2026 · CVE Program (cve.org) e CISA ADP
• Affected products added · red hat/red hat ceph storage 9, red hat/red hat enterprise linux 10, red hat/red hat enterprise linux 6, red hat/red hat
  Oct 29, 2026 · CVE Program (cve.org) e CISA ADP
• Record published
  Oct 29, 2026
• CVSS changed · 4.3
  Oct 29, 2026 · NIST National Vulnerability Database
• Source status changed · → Awaiting Analysis
  Oct 29, 2026 · NIST National Vulnerability Database
• Record created in this database
  Oct 29, 2026 · NIST National Vulnerability Database
• CVE published
  Oct 29, 2026 · redhat

Source activity

Repeated readings are counted rather than listed.

• 1× References added · Oct 30, 2026 – Oct 30, 2026
• 1× Official description updated · Oct 29, 2026 – Oct 29, 2026

References

4 on the record

• github.com/advisories/GHSA-2r7h-m3qh-f4cj
  GitHub Security Advisories
• bugzilla.redhat.com/show_bug.cgi
  issue-tracking, x_refsource_REDHAT, NIST National Vulnerability Database
• nvd.nist.gov/vuln/detail/CVE-2026-93010
  GitHub Security Advisories
• access.redhat.com/security/cve/CVE-2026-93010
  vdb-entry, x_refsource_REDHAT, NIST National Vulnerability Database

Elsewhere on this site

Related CVEs (same products)

• High CVE-2026-119777 Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: stack buffer overflow in h.266/vvc parser 30m
• High CVE-2026-119528 Gimp: gimp: stack buffer overflow in psd image resource header loader 4h
• Low CVE-2026-115456 Gcc: out-of-bounds read in std::from_chars 9h
• Medium CVE-2026-114691 Gcc: integer wrap in `std 10h
• Medium CVE-2026-114690 Gcc: confirmed out-of-bounds read/write in libstdc++ parallel `std 10h
• Medium CVE-2026-115455 Gcc: stack overflow in std::bitset on libstdc++ 10h

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

• No FIRST EPSS score.
• No fixed version, patch or mitigation documented.
• No CISA SSVC assessment.
• No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
• No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
• No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-93010 is "Dnsmasq: dnsmasq: --leasequery without address argument applies no source address check", rated Medium. It affects Red Hat Ceph Storage 9 (Red Hat); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 4.3 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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