{"id":"CVE-2026-116073","published":"2026-10-25T12:16:29.920","lastModified":"2026-10-26T17:01:22.130","description":"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 '/download model' with a crafted URL containing encoded '../' sequences to write attacker-controlled content to arbitrary paths writable by Leon.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","cwes":["CWE-22"],"vendors":[],"products":[],"references":[{"url":"https://github.com/leon-ai/leon","tags":[]},{"url":"https://github.com/leon-ai/leon/blob/21baf11714f618a9367f25882e59e856d3308037/server/src/built-in-command/commands/download-command/download-command.ts#L21-L28","tags":[]},{"url":"https://github.com/leon-ai/leon/commit/50df142a89a0859e5b7283d87afdab7b01e712a2","tags":[]},{"url":"https://github.com/leon-ai/leon/issues/593","tags":[]},{"url":"https://github.com/leon-ai/leon/pull/594","tags":[]},{"url":"https://www.vulncheck.com/advisories/leon-before-commit-50df142-path-traversal-via-download-model-command","tags":[]}],"exploitRefs":[{"url":"https://github.com/leon-ai/leon","tags":[]},{"url":"https://github.com/leon-ai/leon/blob/21baf11714f618a9367f25882e59e856d3308037/server/src/built-in-command/commands/download-command/download-command.ts#L21-L28","tags":[]},{"url":"https://github.com/leon-ai/leon/commit/50df142a89a0859e5b7283d87afdab7b01e712a2","tags":[]},{"url":"https://github.com/leon-ai/leon/issues/593","tags":[]},{"url":"https://github.com/leon-ai/leon/pull/594","tags":[]}],"hasPoc":true,"ai":null}