{"id":"CVE-2026-116073","title":"Leon before commit 50df142 Path Traversal via /download model Command","summary":"Leon before commit 50df142 contains a path traversal vulnerability in getModelFileNameFromURL() that allows attackers to write files outside the models directory via percent-encoded separators. Attackers can trick a user into running '/d…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","cvssSource":"cna","cwe":["CWE-22"],"vendor":"leon-ai","product":"leon","affected":["leon >= a3afdef81c8dd085b922f5a4e6b68bb9b9d802e4 < 50df142a89a0859e5b7283d87afdab7b01e712a2"],"published":"2026-10-25","updated":"2026-10-25","sourceUpdated":"2026-10-25T11:51:00.624Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116073","references":[{"url":"https://github.com/leon-ai/leon/issues/593","label":"GitHub Issue #593"},{"url":"https://github.com/leon-ai/leon"},{"url":"https://github.com/leon-ai/leon/blob/21baf11714f618a9367f25882e59e856d3308037/server/src/built-in-command/commands/download-command/download-command.ts#L21-L28"},{"url":"https://github.com/leon-ai/leon/pull/594"},{"url":"https://github.com/leon-ai/leon/commit/50df142a89a0859e5b7283d87afdab7b01e712a2"},{"url":"https://www.vulncheck.com/advisories/leon-before-commit-50df142-path-traversal-via-download-model-command","label":"VulnCheck Advisory: Leon before commit 50df142 Path Traversal via /download model Command"}],"tags":["cve.org"],"ingestedAt":"2026-10-25T22:08:29.957Z","slug":"CVE-2026-116073","body":"## Overview\n\nLeon before commit 50df142 contains a path traversal vulnerability in getModelFileNameFromURL() that allows attackers to write files outside the models directory via percent-encoded separators. Attackers can trick a user into running '/download model' with a crafted URL containing encoded '../' sequences to write attacker-controlled content to arbitrary paths writable by Leon.\n\n## Affected\n\n- `leon >= a3afdef81c8dd085b922f5a4e6b68bb9b9d802e4 < 50df142a89a0859e5b7283d87afdab7b01e712a2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}