BerriAI LiteLLM up to 1.83.7 Archive Extraction path traversal

Summaryinfo

A vulnerability marked as critical has been reported in BerriAI LiteLLM. Impacted is an unknown function of the component Archive Extraction. This manipulation causes path traversal. This vulnerability is registered as CVE-2026-59820. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in BerriAI LiteLLM. Affected by this vulnerability is an unknown code of the component Archive Extraction. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.7-stable, LiteLLM Skills archive extraction did not sufficiently validate file paths from uploaded skill ZIP archives, allowing an authenticated user with access to LiteLLM LLM API routes or a key whose allowed_routes includes /v1/skills, anthropic_routes, or llm_api_routes to upload a crafted skill archive containing path traversal entries that could be written outside the intended extraction or staging directory. This issue is fixed in version 1.83.7-stable.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-59820 since 07/07/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 1.83.7-stable eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• BerriAI

Name

• LiteLLM

Version

• 1.44.9
• 1.44.12
• 1.53.1
• 1.61.15-nightly
• 1.63.14
• 1.65.4
• 1.82.0-stable
• 1.83.0
• 1.83.7

Website

• Product: https://github.com/BerriAI/litellm/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion