CVE-2025-27507: IDOR Vulnerabilities in ZITADEL's Admin API that Primarily Impact LDAP Configurations

Should you act?

Critical, preconditions apply

Severe if exploited, but exploitation needs conditions that may not apply to you. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
• EPSS 0.6%, percentile 48: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 48% of all scored CVEs (low). EPSS is a probability, not a verdict.
• Needs an account (high (admin)). Exposure depends on who can log in.
• Only applies if your dependency tree includes github.com/zitadel/zitadel/v2 (Go) < 2.63.8, fixed in 2.63.8; github.com/zitadel/zitadel/v2 (Go) >= 2.64.0, < 2.64.5, fixed in 2.64.5; github.com/zitadel/zitadel/v2 (Go) >= 2.65.0, < 2.65.6, fixed in 2.65.6; github.com/zitadel/zitadel/v2 (Go) >= 2.66.0, < 2.66.11, fixed in 2.66.11. Check your lockfile, including transitive dependencies.

What it is

The open-source identity infrastructure software Zitadel allows administrators to disable the user self-registration. 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, upgrading to the patched version to address all identified issues is strongly recommended. This vulnerability is fixed in 2.71.0, 2.70.1, ,2.69.4, 2.68.4, 2.67.8, 2.66.11, 2.65.6, 2.64.5, and 2.63.8.

From the GitHub advisory

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}

Weakness type: CWE-639, CWE-863.

Product: github.com/zitadel/zitadel/v2 (Go) · Assigned by: GitHub_M · Published: 2025-03-04

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: high (admin)
• User interaction: none
• Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• CISA SSVC assessment: exploitation none, automatable no, technical impact total.
• FIRST EPSS (model of 2026-10-21): 0.61% probability of exploitation activity in the next 30 days; percentile 48.

Timeline

• 2025-03-04 — CVE record published by GitHub_M
• 2025-03-04 — GitHub-reviewed advisory GHSA-f3gh-529w-v32x published (critical)
• 2025-03-12 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

1. GitHub Advisory GHSA-f3gh-529w-v32x github.com
2. CVE.org record CVE-2025-27507 cve.org
3. NVD entry CVE-2025-27507 nvd.nist.gov

Other references from the CVE record and advisory

1. github.com github.com
2. github.com github.com
3. github.com github.com
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5. github.com github.com
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7. github.com github.com
8. github.com github.com
9. github.com github.com
10. github.com github.com
11. github.com github.com
12. pkg.go.dev pkg.go.dev

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