Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Corosync | Corosync | - |
| Redhat | Openshift | 4.0 |
| Redhat | Enterprise Linux | 7.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2026:13644
- https://access.redhat.com/errata/RHSA-2026:13657
- https://access.redhat.com/errata/RHSA-2026:13673
- 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-2026:19200
- https://access.redhat.com/security/cve/CVE-2026-35092Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=2453169ExploitThird Party Advisory
FAQ
What is CVE-2026-35092?
CVE-2026-35092 is a vulnerability with a CVSS score of 7.5 (HIGH). 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) pack...
How severe is CVE-2026-35092?
CVE-2026-35092 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35092?
Check the references section above for vendor advisories and patch information. Affected products include: Corosync Corosync, Redhat Openshift, Redhat Enterprise Linux.