{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94276", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-09-21T09:22:14.849Z", "datePublished": "2026-10-01T11:02:36.855Z", "dateUpdated": "2026-10-01T14:44:30.267Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-10-01T11:02:41.622Z"}, "title": "Apache APISIX: Openid-connect introspection validation issue", "problemTypes": [{"descriptions": [{"description": "CWE-287 Improper Authentication", "lang": "en", "cweId": "CWE-287", "type": "CWE"}]}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache APISIX", "versions": [{"status": "affected", "version": "3.12.0", "lessThanOrEqual": "3.18.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Improper Authentication vulnerability in Apache APISIX.\n\nOn a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may get\u00a0accepted on a route restricted to another.\u00a0This issue affects Apache APISIX: from 3.12.0 through 3.18.0.\n\nUsers are recommended to upgrade to version 3.19.0, which fixes the issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Improper Authentication vulnerability in Apache APISIX.</p>On a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may get<span>&nbsp;accepted on a route restricted to another.&nbsp;</span><span>This issue affects Apache APISIX: from 3.12.0 through 3.18.0.</span><p>Users are recommended to upgrade to version 3.19.0, which fixes the issue.</p>"}]}], "references": [{"url": "https://lists.apache.org/thread.html/txn3br25kl657fh15rwcy1oht1xbpyyk", "tags": ["vendor-advisory"]}], "metrics": [{"scenarios": [{"lang": "en", "value": "GENERAL"}], "format": "CVSS", "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "HIGH", "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": 5.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N"}}], "credits": [{"lang": "en", "value": "sec-reex", "type": "reporter"}, {"lang": "en", "value": "shreemaan-abhishek", "type": "coordinator"}, {"lang": "en", "value": "shreemaan-abhishek", "type": "remediation developer"}], "x_generator": {"engine": "Vulnogram 1.0.3"}, "x_gcve": [{"vulnId": "CVE-2026-94276", "recordType": "advisory"}]}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/10/01/8"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-10-01T13:11:03.471Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-01T14:44:03.040776Z", "id": "CVE-2026-94276", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-01T14:44:30.267Z"}}]}, "vulnerability-lookup:meta": {"epss": {"cve": "CVE-2026-94276", "date": "2026-11-13", "epss": "0.00334", "percentile": "0.27173"}, "nvd": "{\"cve\":{\"id\":\"CVE-2026-94276\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2026-10-01T12:17:17.347\",\"lastModified\":\"2026-10-01T15:17:36.580\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper Authentication vulnerability in Apache APISIX.\\n\\nOn a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may get\u00a0accepted on a route restricted to another.\u00a0This issue affects Apache APISIX: from 3.12.0 through 3.18.0.\\n\\nUsers are recommended to upgrade to version 3.19.0, which fixes the issue.\"}],\"affected\":[{\"source\":\"security@apache.org\",\"affectedData\":[{\"vendor\":\"Apache Software Foundation\",\"product\":\"Apache APISIX\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"3.12.0\",\"lessThanOrEqual\":\"3.18.0\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security@apache.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":5.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"HIGH\",\"subIntegrityImpact\":\"LOW\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-10-01T14:44:03.040776Z\",\"id\":\"CVE-2026-94276\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-287\"}]}],\"references\":[{\"url\":\"https://lists.apache.org/thread.html/txn3br25kl657fh15rwcy1oht1xbpyyk\",\"source\":\"security@apache.org\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/10/01/8\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}", "vulnrichment": {"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2026/10/01/8\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-10-01T13:11:03.471Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-94276\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-01T14:44:03.040776Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-01T14:44:21.703Z\"}}], \"cna\": {\"title\": \"Apache APISIX: Openid-connect introspection validation issue\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"sec-reex\"}, {\"lang\": \"en\", \"type\": \"coordinator\", \"value\": \"shreemaan-abhishek\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"shreemaan-abhishek\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 5.1, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"HIGH\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Apache Software Foundation\", \"product\": \"Apache APISIX\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.12.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"3.18.0\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://lists.apache.org/thread.html/txn3br25kl657fh15rwcy1oht1xbpyyk\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.3\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Improper Authentication vulnerability in Apache APISIX.\\n\\nOn a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may get\\u00a0accepted on a route restricted to another.\\u00a0This issue affects Apache APISIX: from 3.12.0 through 3.18.0.\\n\\nUsers are recommended to upgrade to version 3.19.0, which fixes the issue.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"<p>Improper Authentication vulnerability in Apache APISIX.</p>On a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may get<span>&nbsp;accepted on a route restricted to another.&nbsp;</span><span>This issue affects Apache APISIX: from 3.12.0 through 3.18.0.</span><p>Users are recommended to upgrade to version 3.19.0, which fixes the issue.</p>\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-287\", \"description\": \"CWE-287 Improper Authentication\"}]}], \"providerMetadata\": {\"orgId\": \"f0158376-9dc2-43b6-827c-5f631a4d8d09\", \"shortName\": \"apache\", \"dateUpdated\": \"2026-10-01T11:02:41.622Z\"}}}", "cveMetadata": "{\"cveId\": \"CVE-2026-94276\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-01T14:44:30.267Z\", \"dateReserved\": \"2026-09-21T09:22:14.849Z\", \"assignerOrgId\": \"f0158376-9dc2-43b6-827c-5f631a4d8d09\", \"datePublished\": \"2026-10-01T11:02:36.855Z\", \"assignerShortName\": \"apache\"}", "dataType": "CVE_RECORD", "dataVersion": "5.2"}}}