Vulnerability 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
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Usebruno | Bruno | < 3.2.1 |
Related Weaknesses (CWE)
References
- https://github.com/axios/axios/issues/10604Issue Tracking
- https://github.com/usebruno/bruno/pull/7632Issue TrackingPatch
- https://github.com/usebruno/bruno/security/advisories/GHSA-658g-p7jg-wx5gMitigationPatchVendor Advisory
- https://www.aikido.dev/blog/axios-npm-compromised-maintainer-hijacked-ratMitigationPress/Media Coverage
FAQ
What is CVE-2026-34841?
CVE-2026-34841 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 hidd...
How severe is CVE-2026-34841?
CVE-2026-34841 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-34841?
Check the references section above for vendor advisories and patch information. Affected products include: Usebruno Bruno.