Go/github.com/zitadel/zitadel CVE-2026-56668: high 8.1, EPSS 0.41%

ZITADEL: Unauthorized Token Privilege Escalation in OAuth2 Token Exchange

Action: Upgrade github.com/zitadel/zitadel to 4.15.3 or later.

go get github.com/zitadel/zitadel@v4.15.3

Affected

Fixed versions

Sources

• osv: GHSA-vrh8-c9cm-wh8v
• https://github.com/zitadel/zitadel/security/advisories/GHSA-vrh8-c9cm-wh8v
• https://nvd.nist.gov/vuln/detail/CVE-2026-56668
• https://github.com/zitadel/zitadel/commit/e2886a61670ca8fd41c9434f87036546e5620bcc
• https://github.com/zitadel/zitadel
• https://github.com/zitadel/zitadel/releases/tag/v4.15.3

CVE-2026-56668 · published 2026-09-14T21:28:23Z · modified 2026-09-17T17:40:44.830526910Z · JSON