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
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
References 4
https://github.com/axios/axios/issues/10604
security-advisories@github.com
https://github.com/usebruno/bruno/pull/7632
security-advisories@github.com
https://github.com/usebruno/bruno/security/advisories/GHSA-658g-p7jg-wx5g
security-advisories@github.com
https://www.aikido.dev/blog/axios-npm-compromised-maintainer-hijacked-rat
security-advisories@github.com