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

Quick assessment

Affected
usebruno bruno
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Bruno是usebruno开源的一个用于探索和测试 Api 的开源 IDE。 Bruno 3.2.1之前版本存在安全漏洞，该漏洞源于供应链攻击，涉及被篡改的axios npm包，可能部署跨平台远程访问木马。

CVSS 9.8 · Critical EPSS 0.32% · P23
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I. Basic Information for CVE-2026-34841

Vulnerability Information
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Vulnerability Title
Axios npm Supply Chain Incident Impacting @usebruno/cli
Source: CVE Program / CVE List V5
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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
下载代码缺少完整性检查
Source: CVE Program / CVE List V5
Vulnerability Title
Bruno 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bruno是usebruno开源的一个用于探索和测试 Api 的开源 IDE。 Bruno 3.2.1之前版本存在安全漏洞，该漏洞源于供应链攻击，涉及被篡改的axios npm包，可能部署跨平台远程访问木马。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
usebruno bruno < 3.2.1 -

II. Public POCs for CVE-2026-34841

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III. Intelligence Information for CVE-2026-34841

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Security Blog Posts for CVE-2026-34841 (1)

IV. Related Vulnerabilities

Same product: bruno
Same vendor: usebruno
Same weakness: CWE-494

V. Comments for CVE-2026-34841

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