CVE-2025-31123
A vulnerability existed where expired keys can be used to retrieve tokens.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.7 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
- EPSS
- 0.40% probability · 34th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-324
- Affected
- zitadel/zitadel
- Source
- security-advisories@github.com
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/zitadel/zitadel/commit/315503beabd679f2e6aec0c004f0f9d2f5b53ed3Patch
- https://github.com/zitadel/zitadel/releases/tag/v2.63.9Release Notes
- https://github.com/zitadel/zitadel/releases/tag/v2.64.6Release Notes
- https://github.com/zitadel/zitadel/releases/tag/v2.65.7Release Notes
- https://github.com/zitadel/zitadel/releases/tag/v2.66.16Release Notes
- https://github.com/zitadel/zitadel/releases/tag/v2.67.13Release Notes
- https://github.com/zitadel/zitadel/releases/tag/v2.68.9Release Notes
- https://github.com/zitadel/zitadel/releases/tag/v2.69.9Release Notes
- https://github.com/zitadel/zitadel/releases/tag/v2.70.8Release Notes
- https://github.com/zitadel/zitadel/releases/tag/v2.71.6Release Notes
- https://github.com/zitadel/zitadel/security/advisories/GHSA-h3q7-347g-qwhfVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.