{"action":"Upgrade github.com/zitadel/zitadel to 4.15.3 or later.","affected":[{"fixed":"4.15.3","introduced":"0"}],"component":"github.com/zitadel/zitadel","cve_ids":["CVE-2026-56666"],"ecosystem":"Go","epss":0.00285,"exploited":false,"fixed_versions":["4.15.3"],"ghsa_id":"GHSA-992q-9gwp-7r79","id":"tcs_01M5KF568RH3GR5FPJ8NK14Y37","modified_at":"2026-09-17T17:40:55.758918973Z","published_at":"2026-09-11T22:13:21Z","references":["https://osv.dev/vulnerability/GHSA-992q-9gwp-7r79","https://github.com/zitadel/zitadel/security/advisories/GHSA-992q-9gwp-7r79","https://nvd.nist.gov/vuln/detail/CVE-2026-56666","https://github.com/zitadel/zitadel/commit/c97012f0c5dc2fe960ae6e940cbea23229f0557f","https://github.com/zitadel/zitadel","https://github.com/zitadel/zitadel/releases/tag/v4.15.3"],"severity":{"label":"medium","score":4.8},"sources":[{"source":"osv","source_id":"GHSA-992q-9gwp-7r79","url":"https://osv.dev/vulnerability/GHSA-992q-9gwp-7r79"}],"summary":"ZITADEL: Auto-linking by email: IdP-side email verification is not checked"}