UBUNTU-CVE-2026-63387

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Source
https://ubuntu.com/security/CVE-2026-63387
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63387.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-63387
Upstream
Published
2026-08-21T00:00:00Z
Modified
2026-08-21T10:00:05.469269041Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

(Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-a ...)

References

Affected packages

Ubuntu:14.04:LTS
libevent

Package

Name
libevent
Purl
pkg:deb/ubuntu/libevent?arch=source&distro=trusty

Affected ranges

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

Affected versions

2.*
2.0.21-stable-1
2.0.21-stable-1ubuntu1
2.0.21-stable-1ubuntu1.14.04.1
2.0.21-stable-1ubuntu1.14.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.0.21-stable-1ubuntu1.14.04.2",
            "binary_name": "libevent-2.0-5"
        },
        {
            "binary_version": "2.0.21-stable-1ubuntu1.14.04.2",
            "binary_name": "libevent-core-2.0-5"
        },
        {
            "binary_version": "2.0.21-stable-1ubuntu1.14.04.2",
            "binary_name": "libevent-extra-2.0-5"
        },
        {
            "binary_version": "2.0.21-stable-1ubuntu1.14.04.2",
            "binary_name": "libevent-openssl-2.0-5"
        },
        {
            "binary_version": "2.0.21-stable-1ubuntu1.14.04.2",
            "binary_name": "libevent-pthreads-2.0-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63387.json"
Ubuntu:16.04:LTS
libevent

Package

Name
libevent
Purl
pkg:deb/ubuntu/libevent?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*
2.0.21-stable-2
2.0.21-stable-2ubuntu0.16.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.0.21-stable-2ubuntu0.16.04.1",
            "binary_name": "libevent-2.0-5"
        },
        {
            "binary_version": "2.0.21-stable-2ubuntu0.16.04.1",
            "binary_name": "libevent-core-2.0-5"
        },
        {
            "binary_version": "2.0.21-stable-2ubuntu0.16.04.1",
            "binary_name": "libevent-extra-2.0-5"
        },
        {
            "binary_version": "2.0.21-stable-2ubuntu0.16.04.1",
            "binary_name": "libevent-openssl-2.0-5"
        },
        {
            "binary_version": "2.0.21-stable-2ubuntu0.16.04.1",
            "binary_name": "libevent-pthreads-2.0-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63387.json"
Ubuntu:18.04:LTS
libevent

Package

Name
libevent
Purl
pkg:deb/ubuntu/libevent?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*
2.1.8-stable-4
2.1.8-stable-4build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.8-stable-4build1",
            "binary_name": "libevent-2.1-6"
        },
        {
            "binary_version": "2.1.8-stable-4build1",
            "binary_name": "libevent-core-2.1-6"
        },
        {
            "binary_version": "2.1.8-stable-4build1",
            "binary_name": "libevent-extra-2.1-6"
        },
        {
            "binary_version": "2.1.8-stable-4build1",
            "binary_name": "libevent-openssl-2.1-6"
        },
        {
            "binary_version": "2.1.8-stable-4build1",
            "binary_name": "libevent-pthreads-2.1-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63387.json"
Ubuntu:20.04:LTS
libevent

Package

Name
libevent
Purl
pkg:deb/ubuntu/libevent?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.1.8-stable-4build1
2.1.11-stable-1~exp0
2.1.11-stable-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.11-stable-1",
            "binary_name": "libevent-2.1-7"
        },
        {
            "binary_version": "2.1.11-stable-1",
            "binary_name": "libevent-core-2.1-7"
        },
        {
            "binary_version": "2.1.11-stable-1",
            "binary_name": "libevent-extra-2.1-7"
        },
        {
            "binary_version": "2.1.11-stable-1",
            "binary_name": "libevent-openssl-2.1-7"
        },
        {
            "binary_version": "2.1.11-stable-1",
            "binary_name": "libevent-pthreads-2.1-7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63387.json"
Ubuntu:22.04:LTS
libevent

Package

Name
libevent
Purl
pkg:deb/ubuntu/libevent?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*
2.1.12-stable-1
2.1.12-stable-1build1
2.1.12-stable-1build2
2.1.12-stable-1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.12-stable-1build3",
            "binary_name": "libevent-2.1-7"
        },
        {
            "binary_version": "2.1.12-stable-1build3",
            "binary_name": "libevent-core-2.1-7"
        },
        {
            "binary_version": "2.1.12-stable-1build3",
            "binary_name": "libevent-extra-2.1-7"
        },
        {
            "binary_version": "2.1.12-stable-1build3",
            "binary_name": "libevent-openssl-2.1-7"
        },
        {
            "binary_version": "2.1.12-stable-1build3",
            "binary_name": "libevent-pthreads-2.1-7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63387.json"
Ubuntu:24.04:LTS
libevent

Package

Name
libevent
Purl
pkg:deb/ubuntu/libevent?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*
2.1.12-stable-9
2.1.12-stable-9ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.12-stable-9ubuntu2",
            "binary_name": "libevent-2.1-7t64"
        },
        {
            "binary_version": "2.1.12-stable-9ubuntu2",
            "binary_name": "libevent-core-2.1-7t64"
        },
        {
            "binary_version": "2.1.12-stable-9ubuntu2",
            "binary_name": "libevent-extra-2.1-7t64"
        },
        {
            "binary_version": "2.1.12-stable-9ubuntu2",
            "binary_name": "libevent-openssl-2.1-7t64"
        },
        {
            "binary_version": "2.1.12-stable-9ubuntu2",
            "binary_name": "libevent-pthreads-2.1-7t64"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63387.json"
Ubuntu:26.04:LTS
libevent

Package

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

Affected ranges

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

Affected versions

2.*
2.1.12-stable-10build1
2.1.12-stable-10build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.12-stable-10build2",
            "binary_name": "libevent-2.1-7t64"
        },
        {
            "binary_version": "2.1.12-stable-10build2",
            "binary_name": "libevent-core-2.1-7t64"
        },
        {
            "binary_version": "2.1.12-stable-10build2",
            "binary_name": "libevent-extra-2.1-7t64"
        },
        {
            "binary_version": "2.1.12-stable-10build2",
            "binary_name": "libevent-openssl-2.1-7t64"
        },
        {
            "binary_version": "2.1.12-stable-10build2",
            "binary_name": "libevent-pthreads-2.1-7t64"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63387.json"