Red Hat Security Advisory: corosync security update
Two vulnerabilities have been identified in the corosync packages used in Red Hat Enterprise Linux cluster software. CVE-2026-35091 allows denial of service and information disclosure via a crafted UDP packet. CVE-2026-35092 allows denial of service through an integer overflow in join message validation. These issues affect multiple Red Hat Enterprise Linux 10. 0 Extended Update Support variants and related cluster software. Red Hat has issued a security advisory with updated packages to address these vulnerabilities. The severity is rated as moderate by Red Hat Product Security. No CVSS score is provided in the advisory. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
The corosync packages for Red Hat Enterprise Linux cluster software contain two security vulnerabilities: CVE-2026-35091, which permits denial of service and information disclosure via a crafted UDP packet, and CVE-2026-35092, which permits denial of service through an integer overflow during join message validation. These vulnerabilities impact multiple Red Hat Enterprise Linux 10.0 Extended Update Support variants including High Availability and CodeReady Linux Builder. Red Hat has released updated corosync packages to fix these issues as detailed in advisory RHSA-2026:14205. The vulnerabilities are rated as moderate severity by Red Hat Product Security. No CVSS base scores are provided in the advisory. There are no known exploits in the wild.
Potential Impact
Successful exploitation of CVE-2026-35091 can cause denial of service and information disclosure via crafted UDP packets. CVE-2026-35092 can cause denial of service through an integer overflow in join message validation. These impacts affect cluster engine availability and confidentiality in Red Hat Enterprise Linux cluster environments. No evidence of active exploitation is reported.
Mitigation Recommendations
Red Hat has released updated corosync packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 10.0 Extended Update Support variants and related cluster software should apply the security update as described in Red Hat advisory RHSA-2026:14205 and the referenced update article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation. Patch status is confirmed as available.
Red Hat Security Advisory: corosync security update
Description
Two vulnerabilities have been identified in the corosync packages used in Red Hat Enterprise Linux cluster software. CVE-2026-35091 allows denial of service and information disclosure via a crafted UDP packet. CVE-2026-35092 allows denial of service through an integer overflow in join message validation. These issues affect multiple Red Hat Enterprise Linux 10. 0 Extended Update Support variants and related cluster software. Red Hat has issued a security advisory with updated packages to address these vulnerabilities. The severity is rated as moderate by Red Hat Product Security. No CVSS score is provided in the advisory. No known exploits are reported in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The corosync packages for Red Hat Enterprise Linux cluster software contain two security vulnerabilities: CVE-2026-35091, which permits denial of service and information disclosure via a crafted UDP packet, and CVE-2026-35092, which permits denial of service through an integer overflow during join message validation. These vulnerabilities impact multiple Red Hat Enterprise Linux 10.0 Extended Update Support variants including High Availability and CodeReady Linux Builder. Red Hat has released updated corosync packages to fix these issues as detailed in advisory RHSA-2026:14205. The vulnerabilities are rated as moderate severity by Red Hat Product Security. No CVSS base scores are provided in the advisory. There are no known exploits in the wild.
Potential Impact
Successful exploitation of CVE-2026-35091 can cause denial of service and information disclosure via crafted UDP packets. CVE-2026-35092 can cause denial of service through an integer overflow in join message validation. These impacts affect cluster engine availability and confidentiality in Red Hat Enterprise Linux cluster environments. No evidence of active exploitation is reported.
Mitigation Recommendations
Red Hat has released updated corosync packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 10.0 Extended Update Support variants and related cluster software should apply the security update as described in Red Hat advisory RHSA-2026:14205 and the referenced update article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation. Patch status is confirmed as available.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:14205
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-35092"]
- Cvss Version
- null
Threat ID: 6a160958e29bf47b5062038b
Added to database: 5/26/2026, 8:58:00 PM
Last enriched: 5/26/2026, 9:16:34 PM
Last updated: 5/27/2026, 4:58:18 AM
Views: 2
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