CVE-2026-24910

State: Published
Severity: 5.9 Medium
Published: Jan 27, 2026
Updated: Jan 28, 2026
Reserved: Jan 27, 2026

Description

In Bun before 1.3.5, the default trusted dependencies list (aka trust allow list) can be spoofed by a non-npm package in the case of a matching name (for file, link, git, or github).

Scores

CVSS	Score	Vector	Source
3.1	5.9 Medium	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N	mitre

Weaknesses

CWE-348 Use of Less Trusted Source

Affected Products

Product	Versions
BunBun	before 1.3.5Affected

References

https://www.scworld.com/news/six-javascript-zero-day-bugs-lead-to-fears-of-supply-chain-attack
https://bun.com/blog/bun-v1.3.5
https://www.koi.ai/blog/packagegate-6-zero-days-in-js-package-managers-but-npm-wont-act

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