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 for Red Hat Enterprise Linux cluster software contain two vulnerabilities: CVE-2026-35091 allows denial of service and information disclosure through crafted UDP packets, and CVE-2026-35092 allows denial of service via an integer overflow during join message validation. These vulnerabilities have been rated with moderate severity by Red Hat Product Security. The advisory RHSA-2026:14213 provides updated corosync packages to remediate these issues for Red Hat Enterprise Linux 9.6 Extended Update Support and related product variants.
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 through an integer overflow condition. Both vulnerabilities impact the availability and confidentiality aspects of affected cluster software. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated corosync packages as part of advisory RHSA-2026:14213 to address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.6 Extended Update Support and related variants should apply the provided security updates promptly. Detailed update instructions are available in the Red Hat advisory and knowledge base article https://access.redhat.com/articles/11258. No alternative mitigations or workarounds are specified.
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 for Red Hat Enterprise Linux cluster software contain two vulnerabilities: CVE-2026-35091 allows denial of service and information disclosure through crafted UDP packets, and CVE-2026-35092 allows denial of service via an integer overflow during join message validation. These vulnerabilities have been rated with moderate severity by Red Hat Product Security. The advisory RHSA-2026:14213 provides updated corosync packages to remediate these issues for Red Hat Enterprise Linux 9.6 Extended Update Support and related product variants.
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 through an integer overflow condition. Both vulnerabilities impact the availability and confidentiality aspects of affected cluster software. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated corosync packages as part of advisory RHSA-2026:14213 to address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.6 Extended Update Support and related variants should apply the provided security updates promptly. Detailed update instructions are available in the Red Hat advisory and knowledge base article https://access.redhat.com/articles/11258. No alternative mitigations or workarounds are specified.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:14213
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-35092"]
- Cvss Version
- null
Threat ID: 6a160959e29bf47b50620952
Added to database: 05/26/2026, 20:58:01 UTC
Last enriched: 06/26/2026, 01:08:39 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 49
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