UBUNTU-CVE-2026-59869

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-59869
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59869.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-59869
Upstream
Published
2026-07-08T16:16:00Z
Modified
2026-07-15T19:45:54.204800519Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 before 3.15.0 and from 4.0.0 before 4.3.0, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in versions 3.15.0 and 4.3.0.

References

Affected packages

Ubuntu:18.04:LTS
node-js-yaml

Package

Name
node-js-yaml
Purl
pkg:deb/ubuntu/node-js-yaml?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.9.1+dfsg-1
3.10.0+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-js-yaml",
            "binary_version": "3.10.0+dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59869.json"
Ubuntu:20.04:LTS
node-js-yaml

Package

Name
node-js-yaml
Purl
pkg:deb/ubuntu/node-js-yaml?arch=source&distro=focal

Affected ranges

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

Affected versions

3.*
3.13.1+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-js-yaml",
            "binary_version": "3.13.1+dfsg-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59869.json"
Ubuntu:22.04:LTS
node-js-yaml

Package

Name
node-js-yaml
Purl
pkg:deb/ubuntu/node-js-yaml?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.14.1+dfsg+~3.12.6-2
4.*
4.1.0+dfsg+~4.0.5-4ubuntu1
4.1.0+dfsg+~4.0.5-5
4.1.0+dfsg+~4.0.5-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-js-yaml",
            "binary_version": "4.1.0+dfsg+~4.0.5-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59869.json"
Ubuntu:24.04:LTS
node-js-yaml

Package

Name
node-js-yaml
Purl
pkg:deb/ubuntu/node-js-yaml?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*
4.1.0+dfsg+~4.0.5-7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-js-yaml",
            "binary_version": "4.1.0+dfsg+~4.0.5-7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59869.json"
Ubuntu:25.10
node-js-yaml

Package

Name
node-js-yaml
Purl
pkg:deb/ubuntu/node-js-yaml?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*
4.1.0+dfsg+~4.0.5-7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-js-yaml",
            "binary_version": "4.1.0+dfsg+~4.0.5-7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59869.json"
Ubuntu:26.04:LTS
node-js-yaml

Package

Name
node-js-yaml
Purl
pkg:deb/ubuntu/node-js-yaml?arch=source&distro=resolute

Affected ranges

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

Affected versions

4.*
4.1.0+dfsg+~4.0.5-7
4.1.1+dfsg+~4.0.9-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-js-yaml",
            "binary_version": "4.1.1+dfsg+~4.0.9-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59869.json"