CVE-2026-34841 Details
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
A supply chain attack has been identified in Bruno, an open-source IDE for API exploration and testing. This attack involved compromised versions of the axios npm package, specifically [email protected] and [email protected], which were published by a hijacked maintainer account. These versions introduced a hidden dependency that deployed a cross-platform Remote Access Trojan (RAT) targeting macOS, Windows, and Linux. Users of @usebruno/cli who installed the package during the attack window on March 31, 2026, may have been affected. The malicious axios versions have been removed from npm, and Bruno has pinned axios to a safe version in the latest release.
Users of @usebruno/cli who installed axios during the attack window should reinstall dependencies, remove the plain-crypto-js package, and rotate all credentials and secrets. For detailed guidance, refer to the Aikido blog post on this incident.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 7, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/axios/axios/issues/10604 | [email protected] | Issue Tracking |
| https://github.com/usebruno/bruno/pull/7632 | [email protected] | Issue TrackingPatch |
| https://github.com/usebruno/bruno/security/advisories/GHSA-658g-p7jg-wx5g | [email protected] | MitigationPatchVendor Advisory |
| https://www.aikido.dev/blog/axios-npm-compromised-maintainer-hijacked-rat | [email protected] | MitigationPress/Media Coverage |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-494 | Download of Code Without Integrity Check | [email protected] |
| CWE-506 | Embedded Malicious Code | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| usebruno bruno | < 3.2.1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 22, 2026 | Initial Analysis | [email protected] |
| Apr 6, 2026 | New CVE Received | [email protected] |