Red Hat Security Advisory: corosync security update
Two vulnerabilities have been identified in the corosync packages used by 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 9 variants and related cluster products. Red Hat has issued a security advisory with updated packages to address these vulnerabilities. The severity is rated as moderate by Red Hat. 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 involves denial of service and information disclosure triggered by a crafted UDP packet. CVE-2026-35092 involves denial of service caused by an integer overflow during join message validation. Both vulnerabilities affect Red Hat Enterprise Linux 9 and its cluster-related variants. Red Hat Product Security has released updated corosync packages to remediate these issues as detailed in advisory RHSA-2026:19200.
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 via integer overflow. Both vulnerabilities impact cluster communication components, potentially disrupting cluster operations. No evidence of active exploitation in the wild has been reported. The overall impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated corosync packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9 and related cluster products should apply the security update as described in Red Hat advisory RHSA-2026:19200 and the referenced update article (https://access.redhat.com/articles/11258). Patch status is confirmed as available. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: corosync security update
Description
Two vulnerabilities have been identified in the corosync packages used by 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 9 variants and related cluster products. Red Hat has issued a security advisory with updated packages to address these vulnerabilities. The severity is rated as moderate by Red Hat. 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 involves denial of service and information disclosure triggered by a crafted UDP packet. CVE-2026-35092 involves denial of service caused by an integer overflow during join message validation. Both vulnerabilities affect Red Hat Enterprise Linux 9 and its cluster-related variants. Red Hat Product Security has released updated corosync packages to remediate these issues as detailed in advisory RHSA-2026:19200.
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 via integer overflow. Both vulnerabilities impact cluster communication components, potentially disrupting cluster operations. No evidence of active exploitation in the wild has been reported. The overall impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated corosync packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9 and related cluster products should apply the security update as described in Red Hat advisory RHSA-2026:19200 and the referenced update article (https://access.redhat.com/articles/11258). Patch status is confirmed as available. 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-2026:19200
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-35092"]
- Cvss Version
- null
Threat ID: 6a160959e29bf47b5062136b
Added to database: 5/26/2026, 8:58:01 PM
Last enriched: 5/26/2026, 9:19:02 PM
Last updated: 5/27/2026, 4:52:23 AM
Views: 2
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