{"id":"CVE-2026-61371","aliases":["EUVD-2026-44709","GHSA-qm7h-f635-h2r6"],"status":"published","title":"Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on...","description":"Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (“truncation-before-validation”).","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.0053,"percentile":0.45134,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-59"],"published":"2026-07-15T00:00:00Z","modified":"2026-10-28T02:31:00Z","references":[{"url":"https://github.com/microsoft/avml/pull/754","tags":["fix"]},{"url":"https://github.com/microsoft/avml/releases/tag/v0.17.0","tags":["web"]},{"url":"https://gist.github.com/thesmartshadow/2d099071f847de8db3dc4bbaf4dfa6df","tags":["exploit","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61371","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-qm7h-f635-h2r6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61371.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-61371","description":"Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (“truncation-before-validation”).","status":"published","published":"2026-07-15T00:00:00Z","modified":"2026-07-15T19:26:26.306Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:19:53.786088Z"}],"euvd":[{"id":"EUVD-2026-44709","description":"Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (“truncation-before-validation”).","status":"published","published":"2026-07-15T00:00:00Z","modified":"2026-07-15T19:26:26Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T18:19:52.35951Z"}],"ghsa":[{"id":"GHSA-qm7h-f635-h2r6","title":"Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on...","description":"Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (“truncation-before-validation”).","status":"published","published":"2026-07-15T18:31:55Z","modified":"2026-07-15T21:32:27Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:09:33.182129Z"}],"nvd":[{"id":"CVE-2026-61371","description":"Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (“truncation-before-validation”).","status":"published","published":"2026-07-15T16:16:50.307Z","modified":"2026-07-15T20:56:32.437Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:12:29.879716Z"}],"osv":[{"id":"CVE-2026-61371","description":"Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (“truncation-before-validation”).","status":"published","published":"2026-07-15T00:00:00Z","modified":"2026-10-28T02:31:00.375970183Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:12.933503Z"}]}}