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CVE-2026-24909

Good to know:

Date: January 27, 2026

vlt before 1.0.0-rc.10 mishandles path sanitization for tar, leading to path traversal during extraction.

Severity Score

5.9

Related Resources (8)

Url: https://github.com/vltpkg/vltpkg

Url: https://github.com/vltpkg/vltpkg/pull/1334

Url: https://github.com/vltpkg/vltpkg/releases/tag/v1.0.0-rc.10

Url: https://www.scworld.com/news/six-javascript-zero-day-bugs-lead-to-fears-of-supply-chain-attack

Url: https://nvd.nist.gov/vuln/detail/CVE-2026-24909

Url: https://github.com/vltpkg/vltpkg/commit/ff8d4099a1929772cea2adf131285e90ede6b0dd

Url: https://www.koi.ai/blog/packagegate-6-zero-days-in-js-package-managers-but-npm-wont-act

Url: https://www.mend.io/vulnerability-database/CVE-2026-24909

Severity Score

5.9

Weakness Type (CWE)

Relative Path Traversal

CWE-23

Top Fix

Upgrade Version

Upgrade to version vlt - 1.0.0-rc.10;@vltpkg/tar - 1.0.0-rc.10;https://github.com/vltpkg/vltpkg.git - v1.0.0-rc.10

CVSS v3.1

Base Score:	5.9
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	CHANGED
Confidentiality (C):	NONE
Integrity (I):	HIGH
Availability (A):	NONE

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