CVE-2026-35092
Description
A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.
Predictions
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 | — |
Red Hat Mixed 6 releases
| Version | Status | Fixed in |
|---|---|---|
| 10.0 | Affected | — |
| 9.0 | Affected | — |
| 9 | Fixed | — |
| 8.0 | Affected | — |
| 8 | Fixed | — |
| 7.0 | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 3.1.9-2+deb13u1 |
| sid | Fixed | 3.1.10-2 |
| forky | Fixed | 3.1.10-2 |
| bullseye | Fixed | 3.1.2-2+deb11u2 |
| bookworm | Fixed | 3.1.7-1+deb12u2 |
Rocky Linux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
References
- https://access.redhat.com/errata/RHSA-2026:13673
- https://access.redhat.com/errata/RHSA-2026:19200
- https://access.redhat.com/errata/RHSA-2026:13644
- https://access.redhat.com/errata/RHSA-2026:13657
- https://access.redhat.com/errata/RHSA-2026:14205
- https://access.redhat.com/errata/RHSA-2026:14210
- https://access.redhat.com/errata/RHSA-2026:14211
- https://access.redhat.com/errata/RHSA-2026:14212
- https://access.redhat.com/errata/RHSA-2026:14213
- https://access.redhat.com/errata/RHSA-2026:14214
- https://access.redhat.com/errata/RHSA-2026:14215
- https://access.redhat.com/errata/RHSA-2026:14216
- https://access.redhat.com/errata/RHSA-2026:19043
- https://access.redhat.com/errata/RHSA-2026:20916
- https://access.redhat.com/security/cve/CVE-2026-35092
- https://bugzilla.redhat.com/show_bug.cgi?id=2453169
- https://bugzilla.redhat.com/show_bug.cgi?id=2453814
- https://security-tracker.debian.org/tracker/CVE-2026-35092
- https://www.suse.com/security/cve/CVE-2026-35092.html
- https://bugzilla.redhat.com/2453813
- https://bugzilla.redhat.com/2453814
- https://errata.almalinux.org/8/ALSA-2026-13657.html
- https://errata.almalinux.org/9/ALSA-2026-13673.html
- https://errata.rockylinux.org/RLSA-2026:13673
CWEs
CWE-190
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.