UBUNTU-CVE-2025-50537

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Source
https://ubuntu.com/security/CVE-2025-50537
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-50537.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-50537
Upstream
Published
2026-01-27T00:00:00Z
Modified
2026-01-27T13:00:50.595312Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Stack overflow vulnerability in eslint before 9.26.0 when serializing objects with circular references in eslint/lib/shared/serialization.js. The exploit is triggered via the RuleTester.run() method, which validates test cases and checks for duplicates. During validation, the internal function checkDuplicateTestCase() is called, which in turn uses the isSerializable() function for serialization checks. When a circular reference object is passed in, isSerializable() enters infinite recursion, ultimately causing a stack overflow.

References

Affected packages

Ubuntu:20.04:LTS / eslint

Package

Name
eslint
Purl
pkg:deb/ubuntu/eslint@5.0.1~dfsg-4build3?arch=source&distro=focal

Affected ranges

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

Affected versions

5.*

5.0.1~dfsg-4build2
5.0.1~dfsg-4build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "eslint",
            "binary_version": "5.0.1~dfsg-4build3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-50537.json"

Ubuntu:22.04:LTS / eslint

Package

Name
eslint
Purl
pkg:deb/ubuntu/eslint@6.4.0~dfsg+~6.1.9-2?arch=source&distro=jammy

Affected ranges

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

Affected versions

5.*

5.16.0~dfsg+~4.16.8-5
5.16.0~dfsg+~4.16.8-6
5.16.0~dfsg+~4.16.8-7
5.16.0~dfsg+~4.16.8-8

6.*

6.4.0~dfsg+~6.1.9-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "eslint",
            "binary_version": "6.4.0~dfsg+~6.1.9-2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-50537.json"

Ubuntu:24.04:LTS / eslint

Package

Name
eslint
Purl
pkg:deb/ubuntu/eslint@6.4.0~dfsg+~6.1.9-11build3?arch=source&distro=noble

Affected ranges

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

Affected versions

6.*

6.4.0~dfsg+~6.1.9-7
6.4.0~dfsg+~6.1.9-11build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "eslint",
            "binary_version": "6.4.0~dfsg+~6.1.9-11build3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-50537.json"

Ubuntu:25.10 / eslint

Package

Name
eslint
Purl
pkg:deb/ubuntu/eslint@6.4.0~dfsg+~6.1.9-12?arch=source&distro=questing

Affected ranges

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

Affected versions

6.*

6.4.0~dfsg+~6.1.9-12

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "eslint",
            "binary_version": "6.4.0~dfsg+~6.1.9-12"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-50537.json"