CVE-2024-1525Network attack vector

LDAP authentication bypass via secondary-email password reset

Published Feb 21, 2024 · Updated Jun 2, 2026

Authentication bypass in GitLab CE/EE allows remote authenticated users to establish direct password access through a secondary email. The PasswordsController secondary-email path checks only the global web-password setting and omits User#allow_password_authentication; reset and sign-in repeat that omission. Reachability requires an LDAP account with a confirmed secondary email and globally enabled password authentication, allowing the account holder to replace the database password and bypass LDAP.

CVSS severity5.3
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in GitLab CE/EE allows remote authenticated users to establish direct password access through a secondary email. The PasswordsController secondary-email path checks only the global web-password setting and omits User#allow_password_authentication; reset and sign-in repeat that omission. Reachability requires an LDAP account with a confirmed secondary email and globally enabled password authentication, allowing the account holder to replace the database password and bypass LDAP.

The record

CVE
CVE-2024-1525
Published
Feb 21, 2024
Updated
Jun 2, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-288, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2026Record 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=16.1 <16.7.6
  2. Affected versionversion=16.8 <16.8.3
  3. Affected versionversion=16.9 <16.9.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=16.1 <16.7.6; version=16.8 <16.8.3; version=16.9 <16.9.1

Published CVSS scores

5.3GitLab Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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