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Alerts This Week
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Debian Bookworm Corosync Critical DoS Memory Disclosure DSA-6261-1

debian
Calendar Grey May 10, 2026
Debian Logo
Corosync faces critical vulnerabilities leading to denial of service and memory disclosure in Debian. Immediate updates recommended.
Two security vulnerabilities were discovered in the Corosync cluster engine, which could result in denial of service or memory disclosure
Topics%20covered

Topics Covered

security advisory denial of service critical debian memory disclosure corosync

Summary

For the oldstable distribution (bookworm), these problems have been fixed
in version 3.1.7-1+deb12u2.

For the stable distribution (trixie), these problems have been fixed in
version 3.1.9-2+deb13u1.

We recommend that you upgrade your corosync packages.

For the detailed security status of corosync please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/corosync

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
High
Critical

Package: corosync
CVE ID: CVE-2026-35091 CVE-2026-35092

Topics%20covered

Topics Covered

security advisory denial of service critical debian memory disclosure corosync

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