PT-2026-56543 · Berriai · Litellm

Published 2026-07-08 · Updated 2026-07-08 · CVE-2026-59820

Positive Technologies (AI Summary)

CVSS v4.0

6.1

Medium

Base vector

AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions LiteLLM versions prior to 1.83.7-stable

Description LiteLLM, a proxy server used to call LLM APIs, contains a flaw in its Skills archive extraction process. An authenticated user with access to the LLM API routes or a key permitted to use /v1/skills, anthropic routes, or llm api routes can upload a specially crafted ZIP archive. This archive can contain path traversal entries, which allow files to be written outside the intended extraction or staging directory. Path traversal is a technique used to access files and directories that are stored outside the web root folder. This issue has been exploited in real-world incidents.

Recommendations Update to version 1.83.7-stable.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-59820

Affected Products

Litellm

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-59820 · Security Note
• https://github.com/BerriAI/litellm/pull/25475 · Note
• https://github.com/BerriAI/litellm/security/advisories/GHSA-5jmr-gcrj-2c9q · Note
• https://github.com/BerriAI/litellm/commit/6a15adcd64137d37f73dee76dfe7481f8c2d9196 · Note
• https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable · Note
• https://twitter.com/KaitanSecurity/status/2074969289128341663 · Twitter Post