High8.2Vendor: MediumRed Hat & Ubuntu Linux
Denial of Service and information disclosure via crafted UDP packet
CVE-2026-35091 Published Apr 1, 2026
CVE-2026-35091
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Denial of Service and information disclosure via crafted UDP packet. Red Hat rates this moderate (CVSS 8.2). Weakness: CWE-253. Affected package(s): corosync. Resolved in Red Hat advisory RHSA-2026:19043 — update the affected packages (`sudo dnf update`).
Affected versions
- corosync-0:3.1.9-1.el10_0.2
- corosync-0:3.1.5-2.el8_6.1
- corosync-0:3.1.5-3.el9_0.1
- corosync-0:3.1.7-1.el9_2.1
- corosync-0:3.1.9-2.el10_1.1
- corosync-0:3.1.8-1.el9_4.1
- corosync-0:2.4.5-7.el7_9.3
- corosync-0:3.1.10-1.el9_8.1
- corosync-0:3.1.8-1.el8_10.1
- corosync-0:3.1.0-3.el8_4.2
- corosync-0:3.1.7-1.el8_8.1
- corosync-0:3.1.10-1.el10_2.1
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
Fixed versions
- RHSA-2026:19043
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:19043 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
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