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Security update for corosync

Type: advisorySource: OSV1 source record

This update for corosync fixes the following issue: - CVE-2026-81665: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly (bsc#1278738).

Announced Source revision 1
Original source ↗

SUSE-SU-2026:4387-1

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:SUSE-SU-2026:4387-1

corosync

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
2.3.6-9.25.1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

corosync

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
2.3.6-9.25.1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

corosync

Source reference: /affected/2/package/name

Affected versions
Not stated in this record
Fixed versions
2.3.6-9.25.1

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.3.6-9.25.1"
          }
        ]
      }
    ],
    "package": {
      "name": "corosync",
      "purl": "pkg:rpm/suse/corosync&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP5",
      "ecosystem": "SUSE:Linux Enterprise High Availability Extension 12 SP5"
    },
    "database_specific": {
      "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4387-1.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "corosync": "2.3.6-9.25.1",
          "libcorosync4": "2.3.6-9.25.1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.3.6-9.25.1"
          }
        ]
      }
    ],
    "package": {
      "name": "corosync",
      "purl": "pkg:rpm/suse/corosync&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS",
      "ecosystem": "SUSE:Linux Enterprise Server 12 SP5-LTSS"
    },
    "database_specific": {
      "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4387-1.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "libcorosync-devel": "2.3.6-9.25.1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.3.6-9.25.1"
          }
        ]
      }
    ],
    "package": {
      "name": "corosync",
      "purl": "pkg:rpm/suse/corosync&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5",
      "ecosystem": "SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5"
    },
    "database_specific": {
      "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4387-1.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "libcorosync-devel": "2.3.6-9.25.1"
        }
      ]
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#37634 · Revision 1
Added to Heist Feed
Publisher date
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