Red Hat Security Advisory: corosync security update
The corosync packages provide the Corosync Cluster Engine and C APIs for Red Hat Enterprise Linux cluster software. Security Fix(es): * corosync: Corosync: Denial of Service and information disclosure via crafted UDP packet (CVE-2026-35091) * corosync: Corosync: Denial of Service via integer overflow in join message validation (CVE-2026-35092) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The corosync packages in Red Hat Enterprise Linux 8.6 cluster software contain two security vulnerabilities: CVE-2026-35091, which permits denial of service and information disclosure via crafted UDP packets, and CVE-2026-35092, which permits denial of service through an integer overflow during join message validation. These vulnerabilities affect the Corosync Cluster Engine and its C APIs. Red Hat has issued a security advisory (RHSA-2026:14214) and released updated corosync packages (version 3.1.5-2.el8_6.1) that fix these issues. The advisory covers multiple Red Hat Enterprise Linux 8.6 variants including Extended Update Support, Update Services for SAP Solutions, and Telecommunications Update Service. No CVSS scores are provided, but the impact is rated moderate.
Potential Impact
Successful exploitation of CVE-2026-35091 can lead to denial of service and potential information disclosure via crafted UDP packets. CVE-2026-35092 can cause denial of service due to an integer overflow in join message validation. These vulnerabilities affect cluster communication and stability in Red Hat Enterprise Linux 8.6 cluster environments. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated corosync packages (version 3.1.5-2.el8_6.1) that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:14214 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: corosync security update
Description
The corosync packages provide the Corosync Cluster Engine and C APIs for Red Hat Enterprise Linux cluster software. Security Fix(es): * corosync: Corosync: Denial of Service and information disclosure via crafted UDP packet (CVE-2026-35091) * corosync: Corosync: Denial of Service via integer overflow in join message validation (CVE-2026-35092) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The corosync packages in Red Hat Enterprise Linux 8.6 cluster software contain two security vulnerabilities: CVE-2026-35091, which permits denial of service and information disclosure via crafted UDP packets, and CVE-2026-35092, which permits denial of service through an integer overflow during join message validation. These vulnerabilities affect the Corosync Cluster Engine and its C APIs. Red Hat has issued a security advisory (RHSA-2026:14214) and released updated corosync packages (version 3.1.5-2.el8_6.1) that fix these issues. The advisory covers multiple Red Hat Enterprise Linux 8.6 variants including Extended Update Support, Update Services for SAP Solutions, and Telecommunications Update Service. No CVSS scores are provided, but the impact is rated moderate.
Potential Impact
Successful exploitation of CVE-2026-35091 can lead to denial of service and potential information disclosure via crafted UDP packets. CVE-2026-35092 can cause denial of service due to an integer overflow in join message validation. These vulnerabilities affect cluster communication and stability in Red Hat Enterprise Linux 8.6 cluster environments. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated corosync packages (version 3.1.5-2.el8_6.1) that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:14214 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:14214
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-35092"]
- Cvss Version
- null
Threat ID: 6a160958e29bf47b50620384
Added to database: 05/26/2026, 20:58:00 UTC
Last enriched: 06/26/2026, 01:08:16 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 46
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