CVE-2026-2291
high
CVSS v3
7.3
CVSS v4 NEW
—
VIR risk
7.3
Description
RHSA-2026:20589: dnsmasq security update (Important)
Predictions
Exploit likelihood
82%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Windows Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.91-1+deb13u1 |
| sid | Fixed | 2.92-5 |
| forky | Fixed | 2.92-5 |
| bullseye | Affected | — |
| bookworm | Fixed | 2.90-4~deb12u2 |
AlmaLinux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 8 | Fixed | dnsmasq-2.79-36.el8_10.aarch64.rpm |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
References
- https://access.redhat.com/errata/RHSA-2026:19373
- https://github.com/NixOS/nixpkgs/pull/519082
- https://github.com/NixOS/nixpkgs/pull/519093
- https://github.com/pi-hole/FTL/releases/tag/v6.6.2
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html
- https://thekelleys.org.uk/dnsmasq/CVE/
- https://www.kb.cert.org/vuls/id/471747
- https://www.suse.com/security/cve/CVE-2026-2291.html
- https://security-tracker.debian.org/tracker/CVE-2026-2291
- https://access.redhat.com/errata/RHSA-2026:20589
- https://bugzilla.redhat.com/2439088
- https://bugzilla.redhat.com/2458516
- https://bugzilla.redhat.com/2458517
- https://bugzilla.redhat.com/2458518
- https://bugzilla.redhat.com/2458519
- https://errata.almalinux.org/8/ALSA-2026-20589.html
- https://errata.almalinux.org/9/ALSA-2026-19373.html
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-2291
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.