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Vulnerabilities

Vulnerability · CVE-2025-64101

Zitadel is open-source identity infrastructure software.

Published Oct 29, 2025 · catalog updated Oct 29, 2025 · Zitadel is open-source identity

Last checked Oct 25, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-64101 is not in CISA KEV. FIRST estimates a 36.00% chance of exploitation in the next 30 days. Check whether you run Zitadel is open-source identity.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Zitadel is open-source identity).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
36.00%
Remediation
Version ranges on file
Affected products
vendor zitadel zitadel 3.0.0-rc.1, < 3.4.3

Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, a potential vulnerability exists in ZITADEL's password reset mechanism. ZITADEL utilizes the Forwarded or X-Forwarded-Host header from incoming requests to construct the URL for the password reset confirmation link. This link, containing a secret code, is then emailed to the user. If an attacker can manipulate these headers (e.g., via host header injection), they could cause ZITADEL to generate a password reset link pointing to a malicious domain controlled by the attacker. If the user clicks this mani

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor zitadel zitadel 3.0.0-rc.1, < 3.4.33.0.0-rc.1, < 3.4.3

How to fix CVE-2025-64101

  • Upgrade

    CVE-2025-64101 lists a fix boundary at 3.4.3. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 3.4.3

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-64101 is not in CISA KEV. FIRST estimates a 36.00% chance of exploitation in the next 30 days. Check whether you run Zitadel is open-source identity.

Which versions are affected?

Compare what you have installed with zitadel zitadel 3.0.0-rc.1, < 3.4.3 3.0.0-rc.1, < 3.4.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 36.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 29, 2025 · EUVD

    Detected

    Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, a potential vulnerability exists in ZITADEL's password reset mechanism. ZITADEL utilizes the Forwarded or X-Forwarded-Host header from incoming requests to construct the URL for the password reset confirmation link. This link, containing a secret code, is then emailed to the user. If an attacker can manipu

  2. Oct 29, 2025 · EUVD

    Updated

    Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, a potential vulnerability exists in ZITADEL's password reset mechanism. ZITADEL utilizes the Forwarded or X-Forwarded-Host header from incoming requests to construct the URL for the password reset confirmation link. This link, containing a secret code, is then emailed to the user. If an attacker can manipu

Sources

  • EUVDVulnerability recordEUVD-2025-36698

    Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, a potential vulnerability exists in ZITADEL's password reset mechanism. ZITADEL utilizes the Forwarded or X-Forwarded-Host header from incoming requests to construct the URL for the passw

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • EUVDOct 25, 2026