Authenticated arbitrary file write via ZIP traversal
Published Jul 8, 2026 · Updated Jul 8, 2026
Path traversal in BerriAI LiteLLM before 1.83.7-stable allows remote authenticated users to write files via crafted skill ZIP archives. SkillsSandboxExecutor.execute joined archive entry paths to its staging directory and wrote their contents without first checking the resolved path. Access to an LLM API route or an allowed Skills-related route is required; arbitrary file writes lead to code execution only when deployment behavior and writable paths permit it.
Summary
What happened
Path traversal in BerriAI LiteLLM before 1.83.7-stable allows remote authenticated users to write files via crafted skill ZIP archives. SkillsSandboxExecutor.execute joined archive entry paths to its staging directory and wrote their contents without first checking the resolved path. Access to an LLM API route or an allowed Skills-related route is required; arbitrary file writes lead to code execution only when deployment behavior and writable paths permit it.
The record
- CVE
- CVE-2026-59820
- Published
- Jul 8, 2026
- Updated
- Jul 8, 2026
- Vendor
- Berri AI
- Product
- LiteLLM
- Classifications
- CWE-22, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 8, 2026CVE publishedPublication date reported by the CVE source.
- Jul 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 1.83.7-stable
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
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo