CVE-2025-3108 - CVE House
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Status published Medium CVE-2025-3108

Unsafe Deserialization in JsonPickleSerializer Enables Remote Code Execution in run-llama/llama_index

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

run-llama/llama_index
Vulnerable Versions:
unspecified

Timeline

Official Publish: July 6th, 2025
Last Modified: July 7th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Weaknesses (CWE)

CWE-1112

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.