CVE-2026-116073
Leon before commit 50df142 contains a path traversal vulnerability in getModelFileNameFromURL()…
- Risk score
- 44/100
- CVSS
- 6.5 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 25 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 atta…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.5 medium
References
- https://github.com/leon-ai/leon
- https://github.com/leon-ai/leon/blob/21baf11714f618a9367f25882e59e856d3308037/server/src/built-in-command/commands/download-command/download-command.ts#L21-L28
- https://github.com/leon-ai/leon/commit/50df142a89a0859e5b7283d87afdab7b01e712a2
- https://github.com/leon-ai/leon/issues/593
- https://github.com/leon-ai/leon/pull/594
- https://www.vulncheck.com/advisories/leon-before-commit-50df142-path-traversal-via-download-model-command
Original 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.
Last activity 25 Oct 2026. Patch Forecast updates every hour.