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CVE-2025-31123

Zitadel vulnerability

8.7 HIGHEPSS 0.40%
  1. Published31 Mar 2025

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 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Affected products

Zitadel≥ 2.62.0 < 2.63.9 · ≥ 2.64.0 < 2.64.6 · ≥ 2.65.0 < 2.65.7 · ≥ 2.66.0 < 2.66.16

Remediation

Fixed in
Zitadel≥ 2.63.9

References

and 1 more references

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Frequently asked

Is CVE-2025-31123 being actively exploited?

CVE-2025-31123 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.40%.

How severe is CVE-2025-31123?

CVE-2025-31123 has a CVSS 3.1 base score of 8.7, rated high. EPSS estimates a 0.40% probability of exploitation.

Which products are affected by CVE-2025-31123?

Affected products include Zitadel.

How do I fix CVE-2025-31123?

Upgrade affected software to a fixed version, for example Zitadel 2.63.9 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-31123 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.