Home/CVE/A vulnerability in the DocugamiReader class of the run-llama/llama_index repository, up to version 0.12.28, involves the
CVE

CVE-2025-6211

A vulnerability in the DocugamiReader class of the run-llama/llama_index repository, up to version 0.12.28, involves the

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.

MEDIUM · CVSS 6.5 EPSS 0.00301
Schedule remediation
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-440Expected Behavior Violation
▤

Affected Products & Versions

1
llamaindex< 0.3.1
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Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI llama-index MODERATE fixed in 0.12.41
PyPI llama-index-readers-docugami MODERATE fixed in 0.3.1
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Public Exploits & PoCs

1
pochuntr.com · 1a48a011-a3c5-4979-9ffc-9652280bc389huntr.com
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Scoring & Timeline

6.5
MEDIUM · CVSS v3.0 · security@huntr.dev
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Jul 2025 · 01:15 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/run-llama/llama_index/commit/29b2e07e64ed7d302b1cc058185560b28eaa1352Patch
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