{"id":"CVE-2026-124723","state":"PUBLISHED","title":"Apache APISIX: unauthorized access to mTLS protected resources","description":"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. This 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.","publishedAt":"2026-11-13T17:49:43.229Z","updatedAt":"2026-11-13T23:05:04.039Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"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","source":"apache"},"assigner":"apache","products":["Apache Software Foundation Apache APISIX"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache APISIX","packageURL":"pkg:software-id/apache.org/apisix","defaultStatus":"unaffected","versions":[{"version":"3.18.0","status":"affected","lessThanOrEqual":"3.19.0","versionType":"semver"}]}],"references":["https://lists.apache.org/thread/0r8dv4ytw5mkhrozlg7mgb9h6z5y7hpn","http://www.openwall.com/lists/oss-security/2026/11/13/10"],"weaknesses":["CWE-436","CWE-863"],"ingestedAt":"2026-11-13T23:12:05.958Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/124xxx/CVE-2026-124723.json","commit":"47d831e1635176ecfe0915ea00703ec3e13005f4","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-124723","state":"PUBLISHED","datePublished":"2026-11-13T17:49:43.229Z","dateUpdated":"2026-11-13T23:05:04.039Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-11-09T11:03:38.294Z"},"containers":{"cna":{"title":"Apache APISIX: unauthorized access to mTLS protected resources","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. This 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."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache APISIX","packageURL":"pkg:software-id/apache.org/apisix","defaultStatus":"unaffected","versions":[{"version":"3.18.0","status":"affected","lessThanOrEqual":"3.19.0","versionType":"semver"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-436","description":"CWE-436 Interpretation Conflict","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-863","description":"CWE-863 Incorrect Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-11-13T17:49:43.229Z"},"source":{"discovery":"UNKNOWN"},"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"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-13T19:49:56.142889Z","id":"CVE-2026-124723","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":"2026-11-13T20:02:19.206Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/11/13/10"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-11-13T23:05:04.039Z"}}]}}}