CVSS 3.1
7.4 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2026-55672
High (7.4). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/zitadel/zitadel 1.80.0-v2.20.0.20260616131956-0973b074b488.
ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refresh tokens to be exchanged under a different client. This issue is fixed in versions 3.4.12 and 4.15.2.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-287, CWE-863
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-xqxv-4jc2-x56x | Go | github.com/zitadel/zitadel | <1.80.0-v2.20.0.20260616131956-0973b074b488 | 1.80.0-v2.20.0.20260616131956-0973b074b488 |
| GO-2026-5768 | Go | github.com/zitadel/zitadel | <1.80.0-v2.20.0.20260616131956-0973b074b488 | 1.80.0-v2.20.0.20260616131956-0973b074b488 |
References
- https://github.com/zitadel/zitadel/commit/562403079a98cf2059cdac11865a45e2f285be71
- https://github.com/zitadel/zitadel/commit/5b1708e0e650398f0ebc3341714f0798b0118917
- https://github.com/zitadel/zitadel/releases/tag/v3.4.12
- https://github.com/zitadel/zitadel/releases/tag/v4.15.2
- https://github.com/zitadel/zitadel/security/advisories/GHSA-xqxv-4jc2-x56x