CVE-2026-34841

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 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)

CWEs

CWE-494, CWE-506

Published

2026-04-06

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• usebruno:bruno

Packages (OSV)

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

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