PT-2026-31920 · Litellm · Litellm

Markus Vervier · Published 2026-04-10 · Updated 2026-05-11 · CVE-2026-40217

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions LiteLLM versions through 2026-04-08

Description LiteLLM through 2026-04-08 allows remote attackers to execute arbitrary code via bytecode rewriting at the /guardrails/test custom code URI.

Recommendations Update LiteLLM to a version later than 2026-04-08.

Exploit

Fix

Weakness Enumeration

CWE-913

CWE-420

Related Identifiers

CVE-2026-40217

GHSA-3926-2JVF-FG29

GHSA-WXXX-GVQV-XP7P

Affected Products

Litellm

References · 11

• 🔥 https://x41-dsec.de/lab/advisories/x41-2026-001-litellm · Exploit
• https://osv.dev/vulnerability/GHSA-wxxx-gvqv-xp7p · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3926-2jvf-fg29 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40217 · Security Note
• https://github.com/BerriAI/litellm · Note
• https://github.com/BerriAI/litellm/security/advisories/GHSA-wxxx-gvqv-xp7p · Note
• https://github.com/BerriAI/litellm/releases/tag/v1.83.10-stable · Note
• https://twitter.com/infoflowcloud/status/2042613671759618528 · Twitter Post
• https://twitter.com/CVEnew/status/2042612428748582994 · Twitter Post
• https://twitter.com/CveFindCom/status/2042614528475627559 · Twitter Post
• https://t.me/cveNotify/161161 · Telegram Post