{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-58086", "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "state": "PUBLISHED", "assignerShortName": "freebsd", "dateReserved": "2026-06-29T01:40:17.498Z", "datePublished": "2026-08-19T07:42:10.902Z", "dateUpdated": "2026-08-27T15:54:55.678Z"}, "containers": {"cna": {"datePublic": "2026-07-29T22:40:00.000Z", "title": "ktrace(2) privilege incorrectly validated in jails", "references": [{"tags": ["vendor-advisory"], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:53.ktrace.asc"}], "affected": [{"defaultStatus": "unknown", "modules": ["ktrace"], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [{"status": "affected", "versionType": "release", "version": "15.1-RELEASE", "lessThan": "p2"}, {"status": "affected", "versionType": "release", "version": "15.0-RELEASE", "lessThan": "p12"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Alexander Leidinger"}], "descriptions": [{"lang": "en", "value": "As an inadvertent side effect of an unrelated code change, PRIV_KTRACE was always denied to a jailed root user. Tracing configured by a jailed root user was therefore not flagged as privileged.\n\nAn unprivileged user in a jail that has permission to debug the target process can modify the jailed root user's ktrace(2) flags, or disable tracing outright. A jailed root user therefore cannot reliably trace unprivileged processes."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-273", "description": "CWE-273: Improper Check for Dropped Privileges", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd", "dateUpdated": "2026-08-19T07:42:10.902Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-27T15:54:51.867264Z", "id": "CVE-2026-58086", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-27T15:54:55.678Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-58086", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-27T15:54:51.867264Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-27T15:54:40.488Z"}}], "cna": {"title": "ktrace(2) privilege incorrectly validated in jails", "credits": [{"lang": "en", "type": "finder", "value": "Alexander Leidinger"}], "affected": [{"vendor": "FreeBSD", "modules": ["ktrace"], "product": "FreeBSD", "versions": [{"status": "affected", "version": "15.1-RELEASE", "lessThan": "p2", "versionType": "release"}, {"status": "affected", "version": "15.0-RELEASE", "lessThan": "p12", "versionType": "release"}], "defaultStatus": "unknown"}], "datePublic": "2026-07-29T22:40:00.000Z", "references": [{"url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:53.ktrace.asc", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "As an inadvertent side effect of an unrelated code change, PRIV_KTRACE was always denied to a jailed root user. Tracing configured by a jailed root user was therefore not flagged as privileged.\n\nAn unprivileged user in a jail that has permission to debug the target process can modify the jailed root user's ktrace(2) flags, or disable tracing outright. A jailed root user therefore cannot reliably trace unprivileged processes."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-273", "description": "CWE-273: Improper Check for Dropped Privileges"}]}], "providerMetadata": {"orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd", "dateUpdated": "2026-08-19T07:42:10.902Z"}}}, "cveMetadata": {"cveId": "CVE-2026-58086", "state": "PUBLISHED", "dateUpdated": "2026-08-27T15:54:55.678Z", "dateReserved": "2026-06-29T01:40:17.498Z", "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "datePublished": "2026-08-19T07:42:10.902Z", "assignerShortName": "freebsd"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "modules": ["ktrace"], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [{"lessThan": "p2", "status": "affected", "version": "15.1-RELEASE", "versionType": "release"}, {"lessThan": "p12", "status": "affected", "version": "15.0-RELEASE", "versionType": "release"}]}], "source": "secteam@freebsd.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:-:*:*:*:*:*:*", "matchCriteriaId": "368CFE5D-C5C2-42AF-AAF4-28DFE1A59C3B", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*", "matchCriteriaId": "AA4AAA57-70A7-4717-ACF2-A253E757FF2C", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:*", "matchCriteriaId": "683CEB32-A634-4363-86FB-2BDC59724E3E", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p11:*:*:*:*:*:*", "matchCriteriaId": "9EC8EE3F-9992-4A0F-A0CD-3B44BA086BD2", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*", "matchCriteriaId": "E24ABFA6-4D12-4DE5-832B-438502C7D188", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*", "matchCriteriaId": "C1C9869C-494B-4628-9AA3-4AA5B989C377", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*", "matchCriteriaId": "002AA2FE-C7BA-471A-9434-0E56A878ACBF", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*", "matchCriteriaId": "B187670D-E3A2-4A0D-A653-982F8B447E78", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*", "matchCriteriaId": "047E7EE9-FB51-4CF2-A8BE-484BFD819565", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:*", "matchCriteriaId": "2C9768AE-9954-4B2A-9525-D7D4942406E7", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:*", "matchCriteriaId": "F8B9EF55-3755-452A-B067-043803099B22", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:*", "matchCriteriaId": "EE3C4F40-A117-4B37-8CDD-096A1A763630", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:-:*:*:*:*:*:*", "matchCriteriaId": "BD327D43-A2DC-49B5-A578-D2116E1E12F3", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:p1:*:*:*:*:*:*", "matchCriteriaId": "E379873C-DA04-4EAA-ABF6-EB87B4B471A8", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "BF16D01F-95EC-4FE3-B32D-135CB82E8391", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:rc3-p1:*:*:*:*:*:*", "matchCriteriaId": "75973F7C-645A-438C-A03B-C77AAAD20C15", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "As an inadvertent side effect of an unrelated code change, PRIV_KTRACE was always denied to a jailed root user. Tracing configured by a jailed root user was therefore not flagged as privileged.\n\nAn unprivileged user in a jail that has permission to debug the target process can modify the jailed root user's ktrace(2) flags, or disable tracing outright. A jailed root user therefore cannot reliably trace unprivileged processes."}], "id": "CVE-2026-58086", "lastModified": "2026-08-31T18:44:55.330", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58086", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-27T15:54:51.867264Z", "version": "2.0.3"}}]}, "published": "2026-08-19T08:17:12.777", "references": [{"source": "secteam@freebsd.org", "tags": ["Vendor Advisory"], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:53.ktrace.asc"}], "sourceIdentifier": "secteam@freebsd.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-273"}], "source": "secteam@freebsd.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15.1-RELEASE,p2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15.0-RELEASE,p12)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FreeBSD", "source": "cna", "vendor": "FreeBSD"}, "product": "freebsd", "vendor": "freebsd"}], "created": "2026-08-19T10:45:03.772958+00:00", "updated": "2026-08-27T19:15:03.662598+00:00", "vendors": ["freebsd", "freebsd$PRODUCT$freebsd"]}