Vulnerability Monitor

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CVE-2025-6211

A vulnerability in the DocugamiReader class of the run-llama/llama_index repository, up to version 0.12.28, involves the use of MD5 hashing to generate IDs for document chunks. This approach leads to hash collisions when structurally distinct chunks contain identical text, resulting in one chunk overwriting another. This can cause loss of semantically or legally important document content, breakage of parent-child chunk hierarchies, and inaccurate or hallucinated responses in AI outputs. The issue is resolved in version 0.3.1.

Published

2025-07-10T13:15:23.137

Last Modified

2025-07-30T20:00:35.440

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.0: 6.5 (MEDIUM)

Weaknesses

Type: Secondary
CWE-440

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	llamaindex	llamaindex	< 0.3.1	Yes

References

https://github.com/run-llama/llama_index/commit/29b2e07e64ed7d302b1cc058185560b28eaa1352 Patch ([email protected])
https://huntr.com/bounties/1a48a011-a3c5-4979-9ffc-9652280bc389 Exploit, Third Party Advisory ([email protected])
https://huntr.com/bounties/1a48a011-a3c5-4979-9ffc-9652280bc389 Exploit, Third Party Advisory (134c704f-9b21-4f2e-91b3-4a467353bcc0)