Is CVE-2026-34841 actively exploited?

No active exploitation of CVE-2026-34841 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34841 be exploited remotely?

Yes. CVE-2026-34841 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34841?

CVE-2026-34841 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-34841

CWE-494Published: April 6, 2026· Updated: Apr 7, 2026

9.8

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.5th

Official 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

NVD Source

Risk Analysis

This critical supply chain vulnerability affected Bruno, an open-source API IDE, through a compromised version of the axios npm package. Users who installed @usebruno/cli during a specific timeframe may have been impacted by a Remote Access Trojan (RAT). With a CVSS score of 9.8, this flaw poses an extremely high risk of system compromise.

No public exploit is currently known for this vulnerability, as it was a supply chain attack. It is remotely exploitable over the network without requiring any user interaction.

Recommended Action

Upgrade Bruno to version 3.2.1 or later to ensure you are using a clean version. Users who installed @usebruno/cli between 00:21 UTC and ~03:30 UTC on March 31, 2026, should consider their systems compromised and take appropriate incident response actions.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-34841 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.