Is CVE-2026-34371 actively exploited?

No active exploitation of CVE-2026-34371 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34371 be exploited remotely?

Yes. CVE-2026-34371 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34371?

CVE-2026-34371 has a CVSS score of 6.3 (MEDIUM).

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MEDIUM

CVE-2026-34371

CWE-22Published: April 7, 2026· Updated: Apr 14, 2026

6.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.0th

Official Description

LibreChat is a ChatGPT clone with additional features. Prior to 0.8.4, LibreChat trusts the name field returned by the execute_code sandbox when persisting code-generated artifacts. On deployments using the default local file strategy, a malicious artifact filename containing traversal sequences (for example, ../../../../../app/client/dist/poc.txt) is concatenated into the server-side destination path and written with fs.writeFileSync() without sanitization. This gives any user who can trigger execute_code an arbitrary file write primitive as the LibreChat server user. This vulnerability is fixed in 0.8.4.

NVD Source

Technical Analysis

CVE-2026-34371 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.3.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.