{"id":"CVE-2026-59151","state":"PUBLISHED","title":"Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover","description":"Prowler is a cloud security platform. Prior to 5.30.3, Prowler's SAML authentication flow trusted the email domain asserted in a SAMLResponse when deciding which tenant should receive the final token, and the ACS finish logic in api/src/backend/api/v1/views.py recalculated the tenant from user.email instead of binding token issuance to the validated SAML configuration. An authenticated attacker with a controlled SAML IdP could complete a valid SAML flow for an attacker-controlled domain while asserting an email address from another configured domain, causing a SAMLToken and tenant-scoped JWT to be issued for the wrong tenant and enabling cross-tenant account takeover. This issue is fixed in version 5.30.3.","publishedAt":"2026-07-10T17:50:07.303Z","updatedAt":"2026-07-13T18:03:20.394Z","severity":{"score":9.6,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["prowler-cloud prowler"],"affected":[{"vendor":"prowler-cloud","product":"prowler","versions":[{"version":"< 5.30.3","status":"affected"}]}],"references":["https://github.com/prowler-cloud/prowler/security/advisories/GHSA-h8m9-jgf8-vwvp","https://github.com/prowler-cloud/prowler/pull/11650","https://github.com/prowler-cloud/prowler/commit/bf3b5c2ba713e533014927141b64948c82c8f32e","https://github.com/prowler-cloud/prowler/commit/f5ff30ad175bd2edf02cd28872653c1cda5867b7","https://github.com/prowler-cloud/prowler/releases/tag/5.30.3"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59151.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59151","state":"PUBLISHED","datePublished":"2026-07-10T17:50:07.303Z","dateUpdated":"2026-07-13T18:03:20.394Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-02T16:50:27.886Z"},"containers":{"cna":{"title":"Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover","descriptions":[{"lang":"en","value":"Prowler is a cloud security platform. Prior to 5.30.3, Prowler's SAML authentication flow trusted the email domain asserted in a SAMLResponse when deciding which tenant should receive the final token, and the ACS finish logic in api/src/backend/api/v1/views.py recalculated the tenant from user.email instead of binding token issuance to the validated SAML configuration. An authenticated attacker with a controlled SAML IdP could complete a valid SAML flow for an attacker-controlled domain while asserting an email address from another configured domain, causing a SAMLToken and tenant-scoped JWT to be issued for the wrong tenant and enabling cross-tenant account takeover. This issue is fixed in version 5.30.3."}],"affected":[{"vendor":"prowler-cloud","product":"prowler","versions":[{"version":"< 5.30.3","status":"affected"}]}],"references":[{"url":"https://github.com/prowler-cloud/prowler/security/advisories/GHSA-h8m9-jgf8-vwvp","name":"https://github.com/prowler-cloud/prowler/security/advisories/GHSA-h8m9-jgf8-vwvp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/prowler-cloud/prowler/pull/11650","name":"https://github.com/prowler-cloud/prowler/pull/11650","tags":["x_refsource_MISC"]},{"url":"https://github.com/prowler-cloud/prowler/commit/bf3b5c2ba713e533014927141b64948c82c8f32e","name":"https://github.com/prowler-cloud/prowler/commit/bf3b5c2ba713e533014927141b64948c82c8f32e","tags":["x_refsource_MISC"]},{"url":"https://github.com/prowler-cloud/prowler/commit/f5ff30ad175bd2edf02cd28872653c1cda5867b7","name":"https://github.com/prowler-cloud/prowler/commit/f5ff30ad175bd2edf02cd28872653c1cda5867b7","tags":["x_refsource_MISC"]},{"url":"https://github.com/prowler-cloud/prowler/releases/tag/5.30.3","name":"https://github.com/prowler-cloud/prowler/releases/tag/5.30.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.6,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"}}],"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":"2026-07-10T17:50:07.303Z"},"source":{"advisory":"GHSA-h8m9-jgf8-vwvp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/prowler-cloud/prowler/security/advisories/GHSA-h8m9-jgf8-vwvp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-13T18:02:53.136588Z","id":"CVE-2026-59151","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-13T18:03:20.394Z"}}]}}}