{"id":"CVE-2026-78552","state":"PUBLISHED","title":"Validation Bypass in Okta Access Gateway Custom Directives","description":"The Okta Access Gateway does not apply its Lua directive restriction to the application-level custom configuration field. The field is interpolated directly into the nginx server block without inspection, resulting in execution of injected directives.","publishedAt":"2026-09-08T20:08:58.455Z","updatedAt":"2026-09-10T17:49:58.586Z","severity":{"score":6,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L","source":"Okta"},"assigner":"Okta","products":["Okta Okta Access Gateway"],"affected":[{"vendor":"Okta","product":"Okta Access Gateway","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2026.9.1","versionType":"semver"}]}],"references":["https://trust.okta.com/security-advisories/validation-bypass-in-okta-access-gateway-custom-directives-cve-2026-78552"],"weaknesses":["CWE-693"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/78xxx/CVE-2026-78552.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-78552","state":"PUBLISHED","datePublished":"2026-09-08T20:08:58.455Z","dateUpdated":"2026-09-10T17:49:58.586Z","assignerShortName":"Okta","assignerOrgId":"59b22baa-87b2-4371-8e4a-e080df12f74a","dateReserved":"2026-08-24T19:22:41.548Z"},"containers":{"cna":{"title":"Validation Bypass in Okta Access Gateway Custom Directives","descriptions":[{"lang":"en","value":"The Okta Access Gateway does not apply its Lua directive restriction to the application-level custom configuration field. The field is interpolated directly into the nginx server block without inspection, resulting in execution of injected directives."}],"affected":[{"vendor":"Okta","product":"Okta Access Gateway","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2026.9.1","versionType":"semver"}]}],"references":[{"url":"https://trust.okta.com/security-advisories/validation-bypass-in-okta-access-gateway-custom-directives-cve-2026-78552"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L","baseScore":6,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"LOW"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-693","lang":"en","description":"Protection Mechanism Failure"}]}],"providerMetadata":{"shortName":"Okta","orgId":"59b22baa-87b2-4371-8e4a-e080df12f74a","dateUpdated":"2026-09-08T20:08:58.455Z"},"solutions":[{"lang":"en","value":"Upgrade the Okta Access Gateway appliance to version 2026.9.1 or greater."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T17:49:35.554063Z","id":"CVE-2026-78552","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-10T17:49:58.586Z"}}]}}}