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
References4
- github.com/usebruno/bruno/security/advisories/GHSA-658g-p7jg-wx… MitigationPatchVendor Advisory
- github.com/usebruno/bruno/pull/7632 Issue TrackingPatch
- github.com/axios/axios/issues/10604 Issue Tracking
- www.aikido.dev/blog/axios-npm-compromised-maintainer-hijacked-r… MitigationPress/Media Coverage
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 15 · as of 12 November 2026
- CWE
- CWE-494CWE-506
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.