Vulnerability Description
A critical deserialization vulnerability exists in the run-llama/llama_index library's JsonPickleSerializer component, affecting versions v0.12.27 through v0.12.40. This vulnerability allows remote code execution due to an insecure fallback to Python's pickle module. JsonPickleSerializer prioritizes deserialization using pickle.loads(), which can execute arbitrary code when processing untrusted data. Attackers can exploit this by crafting malicious payloads to achieve full system compromise. The root cause includes an insecure fallback mechanism, lack of validation or safeguards, misleading design, and violation of Python security guidelines.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Llamaindex | Llamaindex | >= 0.12.27, < 0.12.41 |
Related Weaknesses (CWE)
References
- https://github.com/run-llama/llama_index/commit/702e4340623092fac4cf2fe95eb94650Patch
- https://huntr.com/bounties/9b55a5e8-74e6-4241-b323-e360dc8b110aExploitThird Party Advisory
FAQ
What is CVE-2025-3108?
CVE-2025-3108 is a vulnerability with a CVSS score of 7.5 (HIGH). A critical deserialization vulnerability exists in the run-llama/llama_index library's JsonPickleSerializer component, affecting versions v0.12.27 through v0.12.40. This vulnerability allows remote co...
How severe is CVE-2025-3108?
CVE-2025-3108 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-3108?
Check the references section above for vendor advisories and patch information. Affected products include: Llamaindex Llamaindex.