{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-39999","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-04-08T02:56:44.658Z","datePublished":"2026-06-19T13:07:50.893Z","dateUpdated":"2026-06-22T16:17:30.194Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Apache APISIX","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"3.16.0","status":"affected","version":"2.2","versionType":"semver"}]}],"credits":[{"lang":"en","type":"reporter","value":"Marco Capuano"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Authentication Bypass by Spoofing vulnerability in Apache APISIX.</p>The attacker can completely bypass authentication capitalising on certain configurations of jwt-auth plugin.<br><p>This issue affects Apache APISIX: from v2.2 through v3.16.0.</p><p>Users are recommended to upgrade to version v3.17.0, which fixes the issue.</p>"}],"value":"Authentication Bypass by Spoofing vulnerability in Apache APISIX.\n\nThe attacker can completely bypass authentication capitalising on certain configurations of jwt-auth plugin.\nThis issue affects Apache APISIX: from v2.2 through v3.16.0.\n\nUsers are recommended to upgrade to version v3.17.0, which fixes the issue."}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","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:H/SI:H/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-290","description":"CWE-290 Authentication Bypass by Spoofing","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-06-19T13:07:50.893Z"},"references":[{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/nfopt8cnxd3k0rs1oxtr7lzxrdw4mojq"}],"source":{"discovery":"UNKNOWN"},"title":"Apache APISIX: JWT Algorithm Confusion allows authentication bypass","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/06/19/5"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-06-19T16:49:47.000Z"}},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-22T16:17:18.663952Z","id":"CVE-2026-39999","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2026-06-22T16:17:30.194Z"}}]}}