PoC Index

CVE-2025-3108

HIGH 7.5EPSS 0.4%

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 v3.1
7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v3.0
5.0 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v3.0
5.0 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
EPSS
0.43% chance of exploitation in the next 30 days, 36th percentile
Published
2025-07-06
Updated
2025-07-07

Proof-of-concept exploits (1)

References

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