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CVE-2026-54036

MEDIUM Exploitation: PoC
5.3
CVSS 3.1
Description
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the GET /api/auth/2fa/enable endpoint can be called by an authenticated user (or attacker with a stolen session) even when 2FA is already fully enabled on the account. This endpoint overwrites the existing TOTP secret, generates new backup codes, and sets twoFactorEnabled to false — all without requiring any TOTP or backup code verification. An attacker with a valid session token can completely take over a victim's 2FA, locking the legitimate user out of their own two-factor authentication. This vulnerability is fixed in 0.8.4-rc1.

Metadata

CVE ID
CVE-2026-54036
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-11 16:57 UTC
Published
2026-06-25 15:39 UTC
Last updated
2026-06-25 16:01 UTC
Primary CWE
CWE-306
CWE-306: Missing Authentication for Critical Function
Vendor / Product
danny-avila / LibreChat
Sources
cve.org  ·  NVD

Severity & Metrics

5.3 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
danny-avila LibreChat — < 0.8.4-rc1
Weakness (CWE)
CWESourceDescription
CWE-306 cna CWE-306: Missing Authentication for Critical Function
CVSS scores (1)
ScoreSeverityVersionSourceVector
5.3 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
References (1)
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