DEBIAN-CVE-2026-35091

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Source
https://security-tracker.debian.org/tracker/CVE-2026-35091
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-35091.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-35091
Upstream
  • CVE-2026-35091
Published
2026-04-01T14:16:57.040Z
Modified
2026-04-02T13:31:03.224583Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents. This vulnerability affects Corosync when running in totemudp/totemudpu mode, which is the default configuration.

References

Affected packages

Debian:11 / corosync

Package

Name
corosync
Purl
pkg:deb/debian/corosync?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.2-2
3.1.2-2+deb11u1
3.1.5-1
3.1.5-2
3.1.6-1
3.1.6-2
3.1.7-1
3.1.8-1
3.1.8-2
3.1.8-3
3.1.9-1
3.1.9-2
3.1.10-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-35091.json"

Debian:12 / corosync

Package

Name
corosync
Purl
pkg:deb/debian/corosync?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.7-1
3.1.7-1+deb12u1
3.1.8-1
3.1.8-2
3.1.8-3
3.1.9-1
3.1.9-2
3.1.10-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-35091.json"

Debian:13 / corosync

Package

Name
corosync
Purl
pkg:deb/debian/corosync?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.9-2
3.1.10-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-35091.json"

Debian:14 / corosync

Package

Name
corosync
Purl
pkg:deb/debian/corosync?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.9-2
3.1.10-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-35091.json"