Skip to main content

Boteraser | Website and Server Security Solutions

🛡️ CVE-2025-27507 — zitadel

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-639 NVD
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

IDOR Vulnerabilities in ZITADEL's Admin API that Primarily Impact LDAP Configurations

Summary

ZITADEL's Admin API contains Insecure Direct Object Reference (IDOR) vulnerabilities that allow authenticated users, without specific IAM roles, to modify sensitive settings. While several endpoints are affected, the most critical vulnerability lies in the ability to manipulate LDAP configurations. Customers who do not utilize LDAP for authentication are not at risk from the most severe aspects of this vulnerability. However, we still strongly recommend upgrading to the patched version to address all identified issues.

Description

ZITADEL's Admin API, intended for managing ZITADEL instances, contains 12 HTTP endpoints that are unexpectedly accessible to authenticated ZITADEL users who are not ZITADEL managers. The most critical vulnerable endpoints relate to LDAP configuration:

  • /idps/ldap
  • /idps/ldap/{id}

By accessing these endpoints, unauthorized users could:

  • Modify ZITADEL's instance LDAP settings, redirecting all LDAP login attempts to a malicious server, effectively taking over user accounts.
  • Expose the original LDAP server's password, potentially compromising all user accounts.

Additional Vulnerable Endpoints

The following endpoints are also affected by IDOR vulnerabilities, potentially allowing unauthorized modification of instance settings such as languages, labels, and templates:

  • /idps/templates/_search
  • /idps/templates/{id}
  • /policies/label/_activate
  • /policies/label/logo
  • /policies/label/logo_dark
  • /policies/label/icon
  • /policies/label/icon_dark
  • /policies/label/font
  • /text/message/passwordless_registration/{language}
  • /text/login/{language}

Impact

The impact of this vulnerability varies depending on whether a ZITADEL instance utilizes LDAP for authentication:

  • LDAP Users: Successful exploitation could lead to complete takeover of user accounts and exposure of the LDAP server's password.
  • Non-LDAP Users: While the most severe risks are related to LDAP, exploitation of the additional vulnerable endpoints could still allow unauthorized modification of instance settings, impacting all organizations.

Patches

2.x versions are fixed on >= [2.71.0](https://github.com/zitadel/zitadel/releases/tag/v2.71.0)

2.70.x versions are fixed on >= [2.70.1](https://github.com/zitadel/zitadel/releases/tag/v2.70.1)

2.69.x versions are fixed on >= [2.69.4](https://github.com/zitadel/zitadel/releases/tag/v2.69.4)

2.68.x versions are fixed on >= [2.68.4](https://github.com/zitadel/zitadel/releases/tag/v2.68.4)

2.67.x versions are fixed on >= [2.67.8](https://github.com/zitadel/zitadel/releases/tag/v2.67.8)

2.66.x versions are fixed on >= [2.66.11](https://github.com/zitadel/zitadel/releases/tag/v2.66.11)

2.65.x versions are fixed on >= [2.65.6](https://github.com/zitadel/zitadel/releases/tag/v2.65.6)

2.64.x versions are fixed on >= [2.64.5](https://github.com/zitadel/zitadel/releases/tag/v2.64.5)

2.63.x versions are fixed on >= [2.63.8](https://github.com/zitadel/zitadel/releases/tag/v2.63.8)

Questions

If you have any questions or comments about this advisory, please email us at security@zitadel.com

Credit

This vulnerability was discovered by Amit Laish, a senior security researcher from GE Vernova and we want to thank him for reporting this to us!

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: High — administrative rights are needed first.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Changed — a successful attack reaches components beyond the vulnerable one.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2025-27507 is classified as CWE-639: Authorization Bypass Through User-Controlled Key. An object is selected by an identifier from the request without checking the caller owns it.

Affected software

CVE-2025-27507 is recorded against 3 packages.

  • github.com/zitadel/zitadel
  • github.com/zitadel/zitadel/v2
  • zitadel (from 2.70.0 up to 2.70.1)

Timeline and source

Published on 10 March 2025 and last revised on 11 March 2025. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com (Advisory)
nvd.nist.gov (Advisory)
github.com (Fix)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)

Other advisories for this package

github.com/zitadel/zitadel has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-639: Authorization Bypass Through User-Controlled Key) in other software:

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L
CWE CWE-639
Public Exploit ✅ No
Source NVD
Published 2025-03-10
Updated 2026-08-20
Modified 2025-03-11

Affected Packages

Software From version Fixed in
github.com/zitadel/zitadel — —
github.com/zitadel/zitadel/v2 — —
zitadel 2.70.0 2.70.1

Similar Threats

Exploit Protection

Are you running zitadel?

CVE-2025-27507 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

Check My Site For CVE-2025-27507 →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesCVECVE 2025
✓