UBUNTU-CVE-2026-78133

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Source
https://ubuntu.com/security/CVE-2026-78133
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78133.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-78133
Upstream
Published
2026-09-07T12:00:00Z
Modified
2026-09-09T19:45:03Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

Use-After-Free During Multi-KE Rekey Collision

References

Affected packages

Ubuntu:26.04:LTS / strongswan

Package

Name
strongswan
Purl
pkg:deb/ubuntu/strongswan?arch=source&distro=resolute

Affected ranges

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

Affected versions

6.*
6.0.1-6ubuntu4
6.0.1-6ubuntu5
6.0.4-1ubuntu1
6.0.4-1ubuntu2
6.0.4-1ubuntu3
6.0.4-1ubuntu3.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "charon-cmd",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "charon-systemd",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "libcharon-extauth-plugins",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "libcharon-extra-plugins",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "libstrongswan",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "libstrongswan-extra-plugins",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "libstrongswan-standard-plugins",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "strongswan",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "strongswan-charon",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "strongswan-libcharon",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "strongswan-nm",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "strongswan-pki",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "strongswan-starter",
            "binary_version": "6.0.4-1ubuntu3.1"
        },
        {
            "binary_name": "strongswan-swanctl",
            "binary_version": "6.0.4-1ubuntu3.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78133.json"