CVE-2025-8850Public exploitNetwork attack vector

2FA disablement via missing code validation

Published Oct 30, 2025 · Updated Oct 30, 2025

Improper authentication in LibreChat before 0.8.0-rc2 allows remote authenticated users to disable 2FA without a valid code. The /api/auth/2fa/disable controller clears the stored TOTP secret and backup codes without validating a submitted TOTP or backup code. A valid session and enabled 2FA are required, and the operation weakens only the same user's account rather than compromising another account.

CVSS severity3.1
Low
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in LibreChat before 0.8.0-rc2 allows remote authenticated users to disable 2FA without a valid code. The /api/auth/2fa/disable controller clears the stored TOTP secret and backup codes without validating a submitted TOTP or backup code. A valid session and enabled 2FA are required, and the operation weakens only the same user's account rather than compromising another account.

The record

CVE
CVE-2025-8850
Published
Oct 30, 2025
Updated
Oct 30, 2025
Vendor
Danny Avila
Product
LibreChat
Classifications
CWE-440, T1556.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <v0.8.0-rc2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Danny Avila · LibreChatversion=unspecified <v0.8.0-rc2

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1huntr.devCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-440Expected Behavior Violation
T1556.006Multi-Factor Authentication

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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