Medium severity6.5NVD Advisory· Published Oct 25, 2026
CVE-2026-116073
CVE-2026-116073
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.
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Affected products
1Patches
Vulnerability mechanics
References
5- github.com/leon-ai/leon/blob/21baf11714f618a9367f25882e59e856d3308037/server/src/built-in-command/commands/download-command/download-command.tsnvd
- github.com/leon-ai/leon/commit/50df142a89a0859e5b7283d87afdab7b01e712a2nvd
- github.com/leon-ai/leon/issues/593nvd
- github.com/leon-ai/leon/pull/594nvd
- www.vulncheck.com/advisories/leon-before-commit-50df142-path-traversal-via-download-model-commandnvd
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