Is CVE-2026-54040 actively exploited?

No active exploitation of CVE-2026-54040 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-54040 be exploited remotely?

Yes. CVE-2026-54040 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-54040?

CVE-2026-54040 has a CVSS score of 7.1 (HIGH).

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HIGH

CVE-2026-54040

CWE-306Published: June 25, 2026· Updated: Jun 29, 2026

7.1

CVSS v3.1

EPSS:0.15%probability of exploitation in 30 daysPercentile:4.9th

Official Description

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the POST /api/auth/2fa/backup/regenerate endpoint regenerates all 2FA backup codes without requiring any TOTP token or existing backup code verification. An attacker with a stolen session token can silently replace a victim's backup codes and use them to bypass 2FA login or disable 2FA entirely. This vulnerability is fixed in 0.8.4-rc1.

NVD Source

Technical Analysis

CVE-2026-54040 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 7.1.