What’s Vulnerable › Vulnerabilities

CVE-2026-34841: Axios npm Supply Chain Incident Impacting @usebruno/cli

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-06 · updated 2026-10-23
• Weakness: CWE-494

Description

Bruno is an open source IDE for exploring and testing APIs. Prior to 3.2.1, Bruno was affected by a supply chain attack involving compromised versions of the axios npm package, which introduced a hidden dependency deploying a cross-platform Remote Access Trojan (RAT). Users of @usebruno/cli who ran npm install between 00:21 UTC and ~03:30 UTC on March 31, 2026 may have been impacted. Upgrade to 3.2.1

Affected products

• usebruno bruno: before 3.2.1 — fixed in 3.2.1

How to fix

Upgrade to a fixed version: usebruno bruno 3.2.1. Check the vendor advisory for mitigations.

References

• https://github.com/axios/axios/issues/10604
• https://github.com/usebruno/bruno/pull/7632
• https://github.com/usebruno/bruno/security/advisories/GHSA-658g-p7jg-wx5g
• https://www.aikido.dev/blog/axios-npm-compromised-maintainer-hijacked-rat

Get alerted when CVE-2026-34841 or the next vulnerability affects your stack