Unauthenticated code execution via extension path traversal
Published Feb 2, 2026 · Updated Feb 2, 2026
Path traversal in LoLLMs WebUI before 9.5 allows remote attackers to execute Python code through the /reinstall_extension endpoint. The route joins an unsanitized name value to the extensions zoo path, and ExtensionBuilder loads the resolved init.py with SourceFileLoader. Exploitation requires a reachable instance and a previously uploaded Python file; the imported file runs with the server process's privileges.
Summary
What happened
Path traversal in LoLLMs WebUI before 9.5 allows remote attackers to execute Python code through the /reinstall_extension endpoint. The route joins an unsanitized name value to the extensions zoo path, and ExtensionBuilder loads the resolved init.py with SourceFileLoader. Exploitation requires a reachable instance and a previously uploaded Python file; the imported file runs with the server process's privileges.
The record
- CVE
- CVE-2024-2356
- Published
- Feb 2, 2026
- Updated
- Feb 2, 2026
- Vendor
- ParisNeo
- Product
- LoLLMs WebUI
- Classifications
- CWE-29, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 2, 2026CVE publishedPublication date reported by the CVE source.
- Feb 2, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <v9.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Huntr reinstall_extension path-traversal proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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