CVE-2026-42271
Actively exploited. CVE-2026-42271 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-06-08) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2026-42271 is indexed in GitHub PoC and Nuclei. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
BerriAI LiteLLM contains a command injection vulnerability that could allow any authenticated user, including holders of low-privilege internal-user keys, to run arbitrary commands on the host.
CSIRTS triage
- What
- The vulnerability permits authenticated users to execute arbitrary commands on the host due to command injection.
- Who is affected
- Authenticated users of BerriAI LiteLLM, including those with low-privilege keys.
- Urgency
- Remediation is critical as exploitation is confirmed and poses severe risks.
- Action
- Update BerriAI LiteLLM to the patched version to resolve the issue.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2026-42271 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
- NucleiA nuclei-templates detection/PoC template exists for this CVE.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2026-42271: BerriAI LiteLLM Command Injection Vulnerabilitycisa-kev · 2026-06-08
External references
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[](https://www.csirts.com/cve/CVE-2026-42271)