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CVE-2025-31123— Zitadel Expired JWT Keys Usable for Authorization Grants

Quick assessment

Affected
zitadel zitadel
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ZITADEL是瑞士ZITADEL开源的一个 Auth0、Firebase Auth、AWS Cognito 以及为容器和无服务器时代构建的 Keycloak 的现代开源替代方案。 ZITADEL存在安全漏洞，该漏洞源于过期密钥可用于检索令牌。

CVSS 8.7 · High EPSS 0.40% · P32
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I. Basic Information for CVE-2025-31123

Vulnerability Information
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Vulnerability Title
Zitadel Expired JWT Keys Usable for Authorization Grants
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用已过期的密钥
Source: CVE Program / CVE List V5
Vulnerability Title
ZITADEL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZITADEL是瑞士ZITADEL开源的一个 Auth0、Firebase Auth、AWS Cognito 以及为容器和无服务器时代构建的 Keycloak 的现代开源替代方案。 ZITADEL存在安全漏洞，该漏洞源于过期密钥可用于检索令牌。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
zitadel zitadel >= 2.62.0, < 2.63.9 -

II. Public POCs for CVE-2025-31123

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8981 chars
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III. Intelligence Information for CVE-2025-31123

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IV. Related Vulnerabilities

Same product: zitadel
Same vendor: zitadel
Same weakness: CWE-324

V. Comments for CVE-2025-31123

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