{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41920", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-04-22T18:29:52.070Z", "datePublished": "2026-07-29T07:18:01.534Z", "dateUpdated": "2026-07-29T07:18:01.534Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Apache Traffic Server", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "9.1.14", "status": "affected", "version": "9.0.0", "versionType": "semver"}, {"lessThanOrEqual": "10.1.3", "status": "affected", "version": "10.0.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "JD Marsters (Bhut Red)"}, {"lang": "en", "type": "reporter", "value": "Apache Community"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Improper Access Control vulnerability in Apache Traffic Server.</p><p>This issue affects Apache Traffic Server: from 9.0.0 through 9.1.14, from 10.0.0 through 10.1.3.</p><p>Users are recommended to upgrade to version 9.1.15 or 10.1.4, which fixes the issue.</p>"}], "value": "Improper Access Control vulnerability in Apache Traffic Server.\n\nThis issue affects Apache Traffic Server: from 9.0.0 through 9.1.14, from 10.0.0 through 10.1.3.\n\nUsers are recommended to upgrade to version 9.1.15 or 10.1.4, which fixes the issue."}], "metrics": [{"other": {"content": {"text": "moderate"}, "type": "Textual description of severity"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"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-284", "description": "CWE-284 Improper Access Control", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-07-29T07:18:01.534Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d"}], "source": {"discovery": "UNKNOWN"}, "title": "Apache Traffic Server: SNI to Host header matching policy is not properly enforced", "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

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