SUSE-SU-2026:1394-1

HIGH8.2

Security update for corosync

Published Apr 16, 2026

Modified 1 months ago

Fix available

Details

Description of the patch:

This update for corosync fixes the following issues:

CVE-2026-35091: Denial of Service and information disclosure via crafted UDP packet (bsc#1261299).
CVE-2026-35092: Denial of Service via integer overflow in join message validation (bsc#1261300).

Affected Packages(21 packages)

corosync

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

corosync-qdevice

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

corosync-qnetd

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

corosync-testagents

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

libcfg6

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

libcmap4

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

libcorosync-devel

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

libcorosync_common4

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

libcpg4

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

libquorum5

SUSE Linux Enterprise High Availability Extension 15 SP4SUSE Linux Enterprise High Availability Extension 15 SP5SUSE Linux Enterprise High Availability Extension 15 SP6SUSE Linux Enterprise High Availability Extension 15 SP7openSUSE Leap 15.6

Fixed in:

2.4.6-150300.12.16.1

References

https://bugzilla.suse.com/1261299

https://bugzilla.suse.com/1261300

https://lists.suse.com/pipermail/sle-updates/2026-April/045607.html

https://www.suse.com/security/cve/CVE-2026-35091/

https://www.suse.com/security/cve/CVE-2026-35092/

https://www.suse.com/support/security/rating/

https://www.suse.com/support/update/announcement/2026/suse-su-20261394-1/

CVSS Analysis

CVSS v3.1

8.2

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

LowC:L

Integrity

NoneI:N

Availability

HighA:H

8.2/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Upstream

CVE-2026-35091 CVE-2026-35092

Ecosystems

SUSE Linux Enterprise High Availability Extension 15 SP4 SUSE Linux Enterprise High Availability Extension 15 SP5 SUSE Linux Enterprise High Availability Extension 15 SP6 SUSE Linux Enterprise High Availability Extension 15 SP7 openSUSE Leap 15.6

Timeline

PublishedApr 16, 2026

ModifiedApr 16, 2026

SUSE-SU-2026:1394-1 | Mondoo Vulnerability Intelligence