{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-112256","assignerOrgId":"f81092c5-7f14-476d-80dc-24857f90be84","state":"PUBLISHED","assignerShortName":"OpenText","dateReserved":"2026-10-19T12:58:32.736Z","datePublished":"2026-10-29T15:31:18.768Z","dateUpdated":"2026-10-29T15:31:18.768Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f81092c5-7f14-476d-80dc-24857f90be84","shortName":"OpenText","dateUpdated":"2026-10-29T15:31:18.768Z"},"title":"Logon bypass (trust of attacker-controlled completed-methods list)","datePublic":"2026-10-29T04:01:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-349","description":"CWE-349 Acceptance of extraneous untrusted data with trusted data","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-1","descriptions":[{"lang":"en","value":"CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}],"affected":[{"vendor":"OpenText","product":"Advanced Authentication Server","versions":[{"status":"affected","version":"6.4.0.0","lessThanOrEqual":"6.4.3.8","changes":[{"at":"6.4.3.9","status":"unaffected"}],"versionType":"semver"},{"status":"affected","version":"6.5.0.0","lessThanOrEqual":"6.5.0.10","changes":[{"at":"6.5.0.11","status":"unaffected"}],"versionType":"semver"},{"status":"affected","version":"6.6.0.0","lessThanOrEqual":"6.6.1.0","changes":[{"at":"6.6.2.0","status":"unaffected"}],"versionType":"semver"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:opentext:advanced_authentication_server:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4.0.0","versionEndIncluding":"6.4.3.8"},{"vulnerable":true,"criteria":"cpe:2.3:a:opentext:advanced_authentication_server:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5.0.0","versionEndIncluding":"6.5.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:a:opentext:advanced_authentication_server:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.0.0","versionEndIncluding":"6.6.1.0"}]}]}],"descriptions":[{"lang":"en","value":"Acceptance of extraneous untrusted data with trusted data vulnerability in OpenText Advanced Authentication Server allows Accessing Functionality Not Properly Constrained by ACLs.\n\nThis issue affects Advanced Authentication Server: from 6.4.0.0 through 6.4.3.8, from 6.5.0.0 through 6.5.0.10, and from 6.6.0.0 through 6.6.1.0.","supportingMedia":[{"type":"text/html","base64":false,"value":"Acceptance of extraneous untrusted data with trusted data vulnerability in OpenText Advanced Authentication Server allows Accessing Functionality Not Properly Constrained by ACLs.<p>This issue affects Advanced Authentication Server: from 6.4.0.0 through 6.4.3.8, from 6.5.0.0 through 6.5.0.10, and from 6.6.0.0 through 6.6.1.0.</p>"}]}],"references":[{"url":"https://docs.microfocus.com/doc/42/26.3.1/security-improvements-662","tags":["release-notes"]},{"url":"https://docs.microfocus.com/doc/2582/26.3.1/security-improvements-662","tags":["release-notes"]},{"url":"https://docs.microfocus.com/doc/42/6.4.3.9/security-improvements-6439"},{"url":"https://docs.microfocus.com/doc/42/6.5.0.11/security-improvements-65011"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","Safety":"NOT_DEFINED","Automatable":"YES","Recovery":"NOT_DEFINED","valueDensity":"CONCENTRATED","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"RED","version":"4.0","baseSeverity":"CRITICAL","baseScore":9.2,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:P/AU:Y/V:C/RE:M/U:Red"}}],"credits":[{"lang":"en","value":"JAN FISHER","type":"finder"}],"source":{"defect":["904637"],"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}