{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123974", "assignerOrgId": "7fefd608-56a6-419f-a002-fd8543c0710a", "state": "PUBLISHED", "assignerShortName": "Akrites", "dateReserved": "2026-11-06T17:53:03.966Z", "datePublished": "2026-11-06T19:52:16.058Z", "dateUpdated": "2026-11-06T20:18:25.863Z"}, "containers": {"cna": {"title": "pytorch/serve: Local privilege escalation through insecure temporary path", "datePublic": "2026-10-29T15:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-379", "description": "CWE-379 Creation of temporary file in directory with insecure permissions", "type": "CWE"}]}], "affected": [{"vendor": "PyTorch", "product": "TorchServe", "repo": "https://github.com/pytorch/serve", "versions": [{"status": "affected", "version": "0", "lessThan": "*", "versionType": "semver"}], "defaultStatus": "unknown"}], "descriptions": [{"lang": "en", "value": "In all versions of PyTorch's TorchServe, a predictable extraction directory in /tmp lets a local user swap the model handler and run code as the TorchServe service account leading to local privilege escalation."}], "tags": ["unsupported-when-assigned"], "references": [{"url": "https://christbowel.com/blog/torchserve-lpe/"}, {"url": "https://github.com/Christbowel/torchserve-lpe"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}], "workarounds": [{"lang": "en", "value": "Three independent fixes:\n\n\n * Set TEMP (or pass -Djava.io.tmpdir) to a directory the service account owns and that is not world-writable.\n * Harden the systemd unit with PrivateTmp=yes, so /tmp is namespaced per service.\n * At the code level, extract into a directory owned by the service account and refuse to reuse a pre-existing extraction root that the service does not own, instead of forceMkdir-ing into whatever is already there."}], "solutions": [{"lang": "en", "value": "The project is archived and currently no permanent solution is scheduled for release. See workaround section."}], "credits": [{"lang": "en", "value": "Christ Bowel", "type": "finder"}], "providerMetadata": {"orgId": "7fefd608-56a6-419f-a002-fd8543c0710a", "shortName": "Akrites", "dateUpdated": "2026-11-06T19:52:16.058Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-06T20:18:09.099163Z", "id": "CVE-2026-123974", "options": [{"Exploitation": "poc"}, {"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": "2026-11-06T20:18:25.863Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "TorchServe", "repo": "https://github.com/pytorch/serve", "vendor": "PyTorch", "versions": [{"lessThan": "*", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "7fefd608-56a6-419f-a002-fd8543c0710a"}], "cveTags": [{"sourceIdentifier": "7fefd608-56a6-419f-a002-fd8543c0710a", "tags": ["unsupported-when-assigned"]}], "descriptions": [{"lang": "en", "value": "In all versions of PyTorch's TorchServe, a predictable extraction directory in /tmp lets a local user swap the model handler and run code as the TorchServe service account leading to local privilege escalation."}], "id": "CVE-2026-123974", "lastModified": "2026-11-06T21:17:08.410", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "7fefd608-56a6-419f-a002-fd8543c0710a", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-123974", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T20:18:09.099163Z", "version": "2.0.3"}}]}, "published": "2026-11-06T20:17:20.633", "references": [{"source": "7fefd608-56a6-419f-a002-fd8543c0710a", "url": "https://christbowel.com/blog/torchserve-lpe/"}, {"source": "7fefd608-56a6-419f-a002-fd8543c0710a", "url": "https://github.com/Christbowel/torchserve-lpe"}], "sourceIdentifier": "7fefd608-56a6-419f-a002-fd8543c0710a", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-379"}], "source": "7fefd608-56a6-419f-a002-fd8543c0710a", "type": "Secondary"}]}

{}

{}