CVE-2025-31123

moderate-risk
Published 2025-03-31

Zitadel is open-source identity infrastructure software. A vulnerability existed where expired keys can be used to retrieve tokens. Specifically, ZITADEL fails to properly check the expiration date of the JWT key when used for Authorization Grants. This allows an attacker with an expired key to obtain valid access tokens. This vulnerability does not affect the use of JWT Profile for OAuth 2.0 Client Authentication on the Token and Introspection endpoints, which correctly reject expired keys. This vulnerability is fixed in 2.71.6, 2.70.8, 2.69.9, 2.68.9, 2.67.13, 2.66.16, 2.65.7, 2.64.6, and 2.63.9.

Do I need to act?

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0.33% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.7/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Zitadel

References (11)

Patch https://github.com/zitadel/zitadel/commit/315503beabd679f2e6aec0c004f0f9d2f5b53e...
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.63.9
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.64.6
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.65.7
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.66.16
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.67.13
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.68.9
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.69.9
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.70.8
Release Notes https://github.com/zitadel/zitadel/releases/tag/v2.71.6
Vendor Advisory https://github.com/zitadel/zitadel/security/advisories/GHSA-h3q7-347g-qwhf
36
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal