Red Hat Security Advisory: corosync security update
Two vulnerabilities affecting the Corosync Cluster Engine in Red Hat Enterprise Linux 9. 4 have been identified. CVE-2026-35091 allows denial of service and information disclosure via a crafted UDP packet. CVE-2026-35092 enables denial of service through an integer overflow in join message validation. These issues have been rated as moderate severity by Red Hat Product Security. Updates addressing these vulnerabilities are available for affected Red Hat Enterprise Linux versions, including Extended Update Support and Update Services for SAP Solutions. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
The corosync packages in Red Hat Enterprise Linux 9.4 contain two security vulnerabilities: CVE-2026-35091, which permits denial of service and information disclosure through a crafted UDP packet, and CVE-2026-35092, which allows denial of service via an integer overflow during join message validation. These vulnerabilities impact the Corosync Cluster Engine and its C APIs used in cluster software. Red Hat has released security updates to address these issues across multiple Red Hat Enterprise Linux 9.4 variants and architectures.
Potential Impact
Successful exploitation of CVE-2026-35091 can lead to denial of service and potential information disclosure. CVE-2026-35092 can cause denial of service due to an integer overflow in message validation. Both vulnerabilities affect cluster communication components, potentially disrupting cluster operations. No evidence of active exploitation in the wild has been reported.
Mitigation Recommendations
Red Hat has released official security updates for the corosync packages in Red Hat Enterprise Linux 9.4 Extended Update Support and related variants. Users should apply these updates promptly following Red Hat's published guidance at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: corosync security update
Description
Two vulnerabilities affecting the Corosync Cluster Engine in Red Hat Enterprise Linux 9. 4 have been identified. CVE-2026-35091 allows denial of service and information disclosure via a crafted UDP packet. CVE-2026-35092 enables denial of service through an integer overflow in join message validation. These issues have been rated as moderate severity by Red Hat Product Security. Updates addressing these vulnerabilities are available for affected Red Hat Enterprise Linux versions, including Extended Update Support and Update Services for SAP Solutions. No known exploits are reported in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The corosync packages in Red Hat Enterprise Linux 9.4 contain two security vulnerabilities: CVE-2026-35091, which permits denial of service and information disclosure through a crafted UDP packet, and CVE-2026-35092, which allows denial of service via an integer overflow during join message validation. These vulnerabilities impact the Corosync Cluster Engine and its C APIs used in cluster software. Red Hat has released security updates to address these issues across multiple Red Hat Enterprise Linux 9.4 variants and architectures.
Potential Impact
Successful exploitation of CVE-2026-35091 can lead to denial of service and potential information disclosure. CVE-2026-35092 can cause denial of service due to an integer overflow in message validation. Both vulnerabilities affect cluster communication components, potentially disrupting cluster operations. No evidence of active exploitation in the wild has been reported.
Mitigation Recommendations
Red Hat has released official security updates for the corosync packages in Red Hat Enterprise Linux 9.4 Extended Update Support and related variants. Users should apply these updates promptly following Red Hat's published guidance at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:14212
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-35092"]
- Cvss Version
- null
Threat ID: 6a160958e29bf47b50620392
Added to database: 5/26/2026, 8:58:00 PM
Last enriched: 5/26/2026, 9:16:40 PM
Last updated: 5/27/2026, 4:49:45 AM
Views: 2
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