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CVE-2026-42271 BerriAI CVE debrief

A command injection vulnerability was discovered in BerriAI LiteLLM, a popular open-source library. This vulnerability, tracked as CVE-2026-42271, has a CVSS score of 8.7 and is classified as HIGH severity. The vulnerability was publicly disclosed on June 8, 2026, and added to the CISA Known Exploited Vulnerabilities (KEV) catalog on the same day, with a due date for mitigation set for June 22, 2026.

Vendor
BerriAI
Product
LiteLLM
CVSS
HIGH 8.7
CISA KEV
Listed
Original CVE published
2026-06-08
Original CVE updated
2026-06-08
Advisory published
2026-06-08
Advisory updated
2026-06-08

Who should care

Users of BerriAI LiteLLM, especially those integrating it into cloud services, should be aware of this vulnerability. Given its high severity and potential for exploitation, immediate attention is required to mitigate the risk.

Technical summary

The CVE-2026-42271 vulnerability in BerriAI LiteLLM allows for command injection, which could lead to unauthorized execution of commands on affected systems. This type of vulnerability is particularly dangerous as it can be exploited remotely, potentially leading to system compromise.

Defensive priority

High

Recommended defensive actions

  • Apply mitigations per vendor instructions.
  • Follow applicable BOD 22-01 guidance for cloud services.
  • Discontinue use of the product if mitigations are unavailable.

Evidence notes

The vulnerability affects BerriAI LiteLLM and has been documented in the CISA Known Exploited Vulnerabilities catalog. For more information, refer to resourceLinkAnnotations with id 'cisa-kev', 'nvd', and 'cve-org'.

Official resources

This debrief is based on CVE-2026-42271 and related sources. For the most current information, please consult the official CVE record and vendor advisories.