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 8. 8 variants, including High Availability and AppStream versions. Red Hat has issued a security advisory rating the impact as moderate and has released updated corosync packages to address these vulnerabilities.
AI Analysis
Technical Summary
The corosync packages in Red Hat Enterprise Linux cluster software contain two security vulnerabilities: CVE-2026-35091, which permits denial of service and information disclosure through crafted UDP packets, and CVE-2026-35092, which permits denial of service via an integer overflow during join message validation. These vulnerabilities impact various Red Hat Enterprise Linux 8.8 distributions, including High Availability and AppStream variants. Red Hat Product Security has classified the severity as moderate and released updated corosync packages to remediate these issues as detailed in advisory RHSA-2026:14216.
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. Both vulnerabilities affect cluster communication components, potentially disrupting cluster operations. No known exploits in the wild have been reported. The overall security impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated corosync packages that address these vulnerabilities. Users should apply the security update described in advisory RHSA-2026:14216 promptly to remediate these issues. For detailed update instructions, refer to 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 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 8. 8 variants, including High Availability and AppStream versions. Red Hat has issued a security advisory rating the impact as moderate and has released updated corosync packages to address these vulnerabilities.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The corosync packages in Red Hat Enterprise Linux cluster software contain two security vulnerabilities: CVE-2026-35091, which permits denial of service and information disclosure through crafted UDP packets, and CVE-2026-35092, which permits denial of service via an integer overflow during join message validation. These vulnerabilities impact various Red Hat Enterprise Linux 8.8 distributions, including High Availability and AppStream variants. Red Hat Product Security has classified the severity as moderate and released updated corosync packages to remediate these issues as detailed in advisory RHSA-2026:14216.
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. Both vulnerabilities affect cluster communication components, potentially disrupting cluster operations. No known exploits in the wild have been reported. The overall security impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated corosync packages that address these vulnerabilities. Users should apply the security update described in advisory RHSA-2026:14216 promptly to remediate these issues. For detailed update instructions, refer to 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-2026:14216
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-35092"]
- Cvss Version
- null
Threat ID: 6a160959e29bf47b506208e2
Added to database: 5/26/2026, 8:58:01 PM
Last enriched: 5/26/2026, 9:16:45 PM
Last updated: 5/27/2026, 4:51:55 AM
Views: 2
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