{"id":"CVE-2026-73302","state":"PUBLISHED","title":"Budibase: OIDC SSO account takeover: incoming identity linked by email without checking email_verified","description":"Budibase is an open-source low-code platform. Prior to 3.39.30, the OIDC flow in packages/backend-core/src/middleware/passport/sso/oidc.ts resolved an email without getEmailVerified or an email_verified requirement, and packages/backend-core/src/middleware/passport/sso/sso.ts then used users.getGlobalUserByEmail as a fallback account-linking key. An attacker who can authenticate through a configured identity provider that asserts a victim email as unverified can have a fresh provider identity merged into the victim Budibase account and inherit the victim roles. This issue is fixed in version 3.39.30.","publishedAt":"2026-08-13T22:04:50.179Z","updatedAt":"2026-08-14T16:10:42.639Z","severity":{"score":9,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["Budibase budibase"],"affected":[{"vendor":"Budibase","product":"budibase","versions":[{"version":"< 3.39.30","status":"affected"}]}],"references":["https://github.com/Budibase/budibase/security/advisories/GHSA-hp6v-6jw7-gv2f","https://github.com/Budibase/budibase/pull/19173","https://github.com/Budibase/budibase/commit/9ecd0048d9c3ae0ee9bd0e6204c621794dd1a4d3","https://github.com/Budibase/budibase/releases/tag/3.39.30"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73302.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73302","state":"PUBLISHED","datePublished":"2026-08-13T22:04:50.179Z","dateUpdated":"2026-08-14T16:10:42.639Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-11T19:42:11.451Z"},"containers":{"cna":{"title":"Budibase: OIDC SSO account takeover: incoming identity linked by email without checking email_verified","descriptions":[{"lang":"en","value":"Budibase is an open-source low-code platform. Prior to 3.39.30, the OIDC flow in packages/backend-core/src/middleware/passport/sso/oidc.ts resolved an email without getEmailVerified or an email_verified requirement, and packages/backend-core/src/middleware/passport/sso/sso.ts then used users.getGlobalUserByEmail as a fallback account-linking key. An attacker who can authenticate through a configured identity provider that asserts a victim email as unverified can have a fresh provider identity merged into the victim Budibase account and inherit the victim roles. This issue is fixed in version 3.39.30."}],"affected":[{"vendor":"Budibase","product":"budibase","versions":[{"version":"< 3.39.30","status":"affected"}]}],"references":[{"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-hp6v-6jw7-gv2f","name":"https://github.com/Budibase/budibase/security/advisories/GHSA-hp6v-6jw7-gv2f","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/Budibase/budibase/pull/19173","name":"https://github.com/Budibase/budibase/pull/19173","tags":["x_refsource_MISC"]},{"url":"https://github.com/Budibase/budibase/commit/9ecd0048d9c3ae0ee9bd0e6204c621794dd1a4d3","name":"https://github.com/Budibase/budibase/commit/9ecd0048d9c3ae0ee9bd0e6204c621794dd1a4d3","tags":["x_refsource_MISC"]},{"url":"https://github.com/Budibase/budibase/releases/tag/3.39.30","name":"https://github.com/Budibase/budibase/releases/tag/3.39.30","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","baseScore":9,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-13T22:04:50.179Z"},"source":{"advisory":"GHSA-hp6v-6jw7-gv2f","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-hp6v-6jw7-gv2f","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-14T16:09:38.550909Z","id":"CVE-2026-73302","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-14T16:10:42.639Z"}}]}}}