What is the CVSS score of CVE-2026-31802?

CVE-2026-31802 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Node.js are affected by CVE-2026-31802?

Organizations using node-tar should be aware of moderate risk from CVE-2026-31802, a path traversal vulnerability rated CVSS 5.5. This could allow unauthorized file access.. A patch is available.

How to fix or mitigate CVE-2026-31802?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review file handling controls.

Node.js CVE-2026-31802

MEDIUM

Path Traversal (CWE-22)

2026-03-10 security-advisories@github.com

GHSA-9ppj-qmqm-q256

Path Traversal Node.js Red Hat Tar Isaacs

5.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.5 MEDIUM

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Red Hat

6.2 MEDIUM

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Mar 10, 2026 - 07:44 nvd

MEDIUM 5.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

213 npm packages depend on tar (108 direct, 105 indirect)

Ecosystem-wide dependent count for version 7.5.11.

DescriptionGitHub Advisory

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.

AnalysisAI

node-tar is a full-featured Tar for Node.js.

Technical ContextAI

Classified as CWE-22 (Path Traversal). Affects node-tar is a full-featured Tar for Node.js.. node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.