What’s Vulnerable › Vulnerabilities

CVE-2026-24910

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-27 · updated 2026-06-17
• Weakness: CWE-348

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).

Affected products

• Bun: before 1.3.5 — fixed in 1.3.5

How to fix

Upgrade to a fixed version: Bun 1.3.5. Check the vendor advisory for mitigations.

References

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

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