{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-124723", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-11-09T11:03:38.294Z", "datePublished": "2026-11-13T17:49:43.229Z", "dateUpdated": "2026-11-13T17:49:43.229Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-11-13T17:49:43.229Z"}, "title": "Apache APISIX: unauthorized access to mTLS protected resources", "problemTypes": [{"descriptions": [{"description": "CWE-436 Interpretation Conflict", "lang": "en", "cweId": "CWE-436", "type": "CWE"}]}, {"descriptions": [{"description": "CWE-863 Incorrect Authorization", "lang": "en", "cweId": "CWE-863", "type": "CWE"}]}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache APISIX", "packageURL": "pkg:software-id/apache.org/apisix", "versions": [{"status": "affected", "version": "3.18.0", "lessThanOrEqual": "3.19.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Interpretation Conflict, leading to Incorrect Authorization vulnerability in Apache APISIX.\n\n\n\nWith match_uri_encoded_slash enabled and skip_mtls_uri_regex\nconfigured, a client without a certificate can reach an upstream\nbehind a route that requires one, limited to request paths that decode\nto an exempted URI.\u00a0This issue affects Apache APISIX: from 3.18.0 through 3.19.0.\n\n\n\nUsers are recommended to upgrade to version 3.20.0, which fixes the issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Interpretation Conflict, leading to Incorrect Authorization vulnerability in Apache APISIX.</p><p><span>With match_uri_encoded_slash enabled and skip_mtls_uri_regex\nconfigured, a client without a certificate can reach an upstream\nbehind a route that requires one, limited to request paths that decode\nto an exempted URI.&nbsp;</span>This issue affects Apache APISIX: from 3.18.0 through 3.19.0.</p><p>Users are recommended to upgrade to version 3.20.0, which fixes the issue.</p>"}]}], "references": [{"url": "https://lists.apache.org/thread/0r8dv4ytw5mkhrozlg7mgb9h6z5y7hpn", "tags": ["vendor-advisory"]}], "metrics": [{"scenarios": [{"lang": "en", "value": "GENERAL"}], "format": "CVSS", "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "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": 6.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}}], "credits": [{"lang": "en", "value": "hataehoon", "type": "reporter"}, {"lang": "en", "value": "shreemaan-abhishek", "type": "remediation developer"}, {"lang": "en", "value": "shreemaan-abhishek", "type": "coordinator"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:software-id/apache.org/apisix", "product": "Apache APISIX", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "3.19.0", "status": "affected", "version": "3.18.0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Interpretation Conflict, leading to Incorrect Authorization vulnerability in Apache APISIX.\n\n\n\nWith match_uri_encoded_slash enabled and skip_mtls_uri_regex\nconfigured, a client without a certificate can reach an upstream\nbehind a route that requires one, limited to request paths that decode\nto an exempted URI.\u00a0This issue affects Apache APISIX: from 3.18.0 through 3.19.0.\n\n\n\nUsers are recommended to upgrade to version 3.20.0, which fixes the issue."}], "id": "CVE-2026-124723", "lastModified": "2026-11-13T18:17:31.930", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-11-13T18:17:31.930", "references": [{"source": "[email protected]", "url": "https://lists.apache.org/thread/0r8dv4ytw5mkhrozlg7mgb9h6z5y7hpn"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-436"}, {"lang": "en", "value": "CWE-863"}], "source": "[email protected]", "type": "Primary"}]}

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