{"id":"CVE-2026-82806","state":"PUBLISHED","title":"Apache APISIX: cross-request permission pollution via static permission list mutation","description":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects Apache APISIX: from 2.3.0 before 3.7.0.\n\n\n\nUnder a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.\n\n\n\nUsers are recommended to upgrade to version 3.7.0 or higher, which fixes the issue.","publishedAt":"2026-10-01T10:58:32.654Z","updatedAt":"2026-10-01T14:57:12.282Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","source":"apache"},"assigner":"apache","products":["Apache Software Foundation Apache APISIX"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache APISIX","defaultStatus":"unaffected","versions":[{"version":"2.3.0","status":"affected","lessThan":"3.7.0","versionType":"semver"}]}],"references":["https://lists.apache.org/thread.html/wvkv2b4oy2fh9v79d30gtsy0bhqmzcdd","http://www.openwall.com/lists/oss-security/2026/10/01/3"],"weaknesses":["CWE-488"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82806.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82806","state":"PUBLISHED","datePublished":"2026-10-01T10:58:32.654Z","dateUpdated":"2026-10-01T14:57:12.282Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-08-31T04:34:45.853Z"},"containers":{"cna":{"title":"Apache APISIX: cross-request permission pollution via static permission list mutation","descriptions":[{"lang":"en","value":"Exposure of data element to wrong session vulnerability in Apache APISIX.\n\n\n\nThis issue affects Apache APISIX: from 2.3.0 before 3.7.0.\n\n\n\nUnder a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.\n\n\n\nUsers are recommended to upgrade to version 3.7.0 or higher, which fixes the issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache APISIX","defaultStatus":"unaffected","versions":[{"version":"2.3.0","status":"affected","lessThan":"3.7.0","versionType":"semver"}]}],"references":[{"url":"https://lists.apache.org/thread.html/wvkv2b4oy2fh9v79d30gtsy0bhqmzcdd","tags":["vendor-advisory"]}],"metrics":[{"scenarios":[{"lang":"en","value":"GENERAL"}],"format":"CVSS","cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-488","description":"CWE-488 Exposure of data element to wrong session","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-10-01T10:58:32.654Z"},"source":{"discovery":"UNKNOWN"},"credits":[{"lang":"en","value":"Lok","type":"reporter"}],"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/01/3"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-01T13:10:57.814Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-01T14:57:00.655996Z","id":"CVE-2026-82806","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":"2026-10-01T14:57:12.282Z"}}]}}}