LiteLLM PyPI package Remote Code Execution Vulnerability

AI firm Mercor confirmed a breach stemming from a supply chain attack involving the open-source LiteLLM PyPI package, where attackers published malicious versions after compromising maintainer credentials. This incident led to the alleged theft of 4TB of sensitive data, including candidate profiles, PII, source code, and API keys, subsequently listed by the Lapsus$ extortion group.

What Happened

AI firm Mercor confirmed a breach stemming from a supply chain attack involving the open-source LiteLLM PyPI package, where attackers published malicious versions after compromising maintainer credentials. This incident led to the alleged theft of 4TB of sensitive data, including candidate profiles, PII, source code, and API keys, subsequently listed by the Lapsus$ extortion group.

Why This Matters

Publisher reporting describes a security event affecting claim. BugSkan could not yet bind a CVE or affected version, so treat the source details as the current record.

Recommended Action

Confirm whether claim is present in your environment and review vendor guidance for this report. Apply available patches or mitigations if your deployment matches the described conditions.

Exposure

Exposure reason: This incident does not currently match a technology in My Interests.

Exploitation status: UNKNOWN

Primary entities:

Timeline

• Incident first seen
  Apr 03, 2026 05:30

  BugSkan first recorded this incident.

• AI Firm Mercor Confirms Breach as Hackers Claim 4TB of Stolen Data - Hackread
  Apr 03, 2026 05:30

  hackread.com · Data Leak

Sources

Related Incidents

Other BugSkan incidents that share identifiers, products, or vendors with this report.

My Interests Match