Vulnerability PYSEC-2026-85

High Risk
HIGH RISK
CVSS Score: 7.8
Score Range: 7.0–8.9
High severity vulnerabilities (CVSS 7.0–8.9). Serious vulnerabilities that should be prioritized soon after critical fixes.
9 months ago
January 12, 2026 at 11:15 PM UTC
No summary available
0.4.4 - 0.11.6
0.4.4 - 0.11.6

Details

LlamaIndex (run-llama/llama_index) versions up to and including 0.11.6 contain an unsafe deserialization vulnerability in BGEM3Index.load_from_disk() in llama_index/indices/managed/bge_m3/base.py. The function uses pickle.load() to deserialize multi_embed_store.pkl from a user-supplied persist_dir without validation. An attacker who can provide a crafted persist directory containing a malicious pickle file can trigger arbitrary code execution when the victim loads the index from disk.

Impacted packages

Timeline

Published
9 months ago
January 12, 2026 at 11:15 PM UTC
Fixed (0.11.7)
2 years ago
September 07, 2024 at 01:06 AM UTC
Last Modified
5 months ago
May 20, 2026 at 09:19 AM UTC