8.7

CVE-2025-31123: zitadel Use of a Key Past its Expiration Date

CVSS: 8.7v3.1HighAnalyzed
Published 31-03-2025Last modified 31-03-2025
Open JSON

Vulnerability summary

CVE-2025-31123 is a high (CVSS 8.7) Use of a Key Past its Expiration Date vulnerability in zitadel. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.3% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v3.1 (CVE.org)
EPSS score
0.40%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 31-03-2025
    PublishedVulnerability first disclosed.
  2. 31-03-2025
    Last modifiedVulnerability information updated.

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 metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

+0.01 pp

From 0.39% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.40%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Zitadel1 product
  • zitadel≥ 2.64.0-rc.1, < 2.64.6 | ≥ 2.65.0-rc.1, < 2.65.7 | ≥ 2.66.0-rc.1, < 2.66.16 | ≥ 2.67.0-rc.1, < 2.67.13 | ≥ 2.68.0-rc.1, < 2.68.9 | ≥ 2.69.0-rc.1, < 2.69.9 | ≥ 2.70.0-rc.1, < 2.70.8 | ≥ 2.71.0-rc.1, < 2.71.6 | ≥ 2.62.0, < 2.63.9 | ≥ 2.64.0, < 2.64.6 | ≥ 2.65.0, < 2.65.7 | ≥ 2.66.0, < 2.66.16 | ≥ 2.67.0, < 2.67.13 | ≥ 2.68.0, < 2.68.9 | ≥ 2.69.0, < 2.69.9 | ≥ 2.70.0, < 2.70.8 | ≥ 2.71.0, < 2.71.6

1 vendor · 1 product

References

11 links
Show all 11 references