Is github.com/zitadel/zitadel affected by CVE-2026-55672?

Go github.com/zitadel/zitadel is affected in <1.80.0-v2.20.0.20260616131956-0973b074b488.

Is CVE-2026-55672 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

high

CVE-2026-55672

Q: Is CVE-2026-55672 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

Go · github.com/zitadel/zitadel

Summary

ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation)

Severity: high
EPSS: 0.4% (p37)
Also known as: GHSA-xqxv-4jc2-x56x
Published: 2026-06-18

References

Related advisories

CVE-2026-54693 — high · Go/github.com/zitadel/zitadel
CVE-2026-44671 — high · Go/github.com/zitadel/zitadel
CVE-2026-55669 — medium · Go/github.com/zitadel/zitadel
GHSA-wxg7-w2v3-w38g — medium · Go/github.com/zitadel/zitadel
CVE-2026-33132 — medium · Go/github.com/zitadel/zitadel
CVE-2026-29191 — medium · Go/github.com/zitadel/zitadel
CVE-2026-29192 — medium · Go/github.com/zitadel/zitadel
CVE-2026-29193 — medium · Go/github.com/zitadel/zitadel

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.