09 May 2026
Reference: CVE-2026-42208
1. What is being reported?
The vulnerability involves a problem in how LiteLLM checks access keys when connecting to AI services. Attackers can send specially crafted requests that trick the system into revealing or changing data it should protect. This issue affects versions from 1.81.16 up to but not including 1.83.7.
2. What this means in plain English
If your organisation uses LiteLLM in the affected versions, attackers could potentially access confidential information or control parts of your system without needing to log in.
3. Could this affect a small business?
Small businesses or charities using BerriAI LiteLLM software in the affected versions could be at risk. If you do not use this software or use a version newer than 1.83.7, you are likely not affected.
4. What to do now
- Check if your organisation uses BerriAI LiteLLM software and identify the version number.
- If using a version between 1.81.16 and before 1.83.7, arrange to update to version 1.83.7 or later immediately.
- If you cannot update right away, consult your IT provider about applying any available mitigations.
- Follow any additional guidance from your software supplier or IT provider to ensure your systems are secure.
5. Ask your IT provider
Can you confirm if our BerriAI LiteLLM software is up to date with version 1.83.7 or later to protect against CVE-2026-42208?
6. Bottom line
Update BerriAI LiteLLM software promptly to avoid serious security risks from this actively exploited vulnerability.
Information sourced from CISA KEV, NVD, and reputable security reporting.