{"id":"CVE-2026-46383","summary":"Microsoft APM: Windows absolute-path tar member overwrite during legacy-bundle probing in `apm install`","details":"Microsoft APM is an open-source, community-driven dependency manager for AI agents. Prior to 0.13.0, Microsoft APM contains a Windows-specific archive extraction boundary failure in the legacy-bundle probe used by apm install \u003cbundle\u003e on supported Python 3.10 and 3.11 runtimes. When apm install is given a local .tar.gz that is not recognized as a plugin-format bundle, APM probes whether it is a legacy --format apm bundle. On Python versions earlier than 3.12, that probe extracts untrusted tar members with raw tar.extractall() without rejecting Windows absolute member names such as D:/.... This vulnerability is fixed in 0.13.0.","aliases":["GHSA-mq5j-pw29-jcv3","PYSEC-2026-2378"],"modified":"2026-07-15T01:49:06.737788978Z","published":"2026-05-15T16:04:24.050Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46383.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-22","CWE-73"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46383.json"},{"type":"ADVISORY","url":"https://github.com/microsoft/apm/security/advisories/GHSA-mq5j-pw29-jcv3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46383"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/microsoft/apm","events":[{"introduced":"0"},{"fixed":"921651639e4bc8231190d816ad4982a163529951"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.13.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v0.12.4","v0.12.3","v0.12.2","v0.12.1","v0.12.0","v0.11.0","v0.10.0","v0.9.4","v0.9.3","v0.9.2","v0.9.1","v0.9.0","v0.8.12","v0.8.11","v0.8.10","v0.8.9","v0.8.8","v0.8.7","v0.8.6","v0.8.5","v0.8.4","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.9","v0.7.8","v0.7.7","v0.7.6","v0.7.5","v0.7.4","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v0.6.1","v0.5.9","v0.5.8","v0.5.7","v0.5.6","v0.5.5","v0.5.3","v0.5.2","v0.5.1","v0.4.3","v0.4.2","v0.4.1","v0.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46383.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"}]}