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.
CVE-2025-6211
This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 76% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EG Risk
- 60(Attend)EG Risk 60/100SSVC: Attend
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity65% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS
- 23.6%
- KEV
- Not listed
Published
July 10, 2025
Last Modified
June 17, 2026
References (3)
- security@huntrhttps://github.com/run-llama/llama_index/commit/29b2e07e64ed7d302b1cc058185560b28eaa1352
- security@huntrhttps://huntr.com/bounties/1a48a011-a3c5-4979-9ffc-9652280bc389
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://huntr.com/bounties/1a48a011-a3c5-4979-9ffc-9652280bc389
Affected Packages
(2 across 1 ecosystem)
PyPI(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| llama-index | 0.10.0 ... 0.9.9 (462 versions) | 0.12.41 | — |
| llama-index-readers-docugami | 0.0.1 ... 0.3.0 (9 versions) | 0.3.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(5)
What is CVE-2025-6211?
When was CVE-2025-6211 disclosed?
Is CVE-2025-6211 actively exploited?
What is the CVSS score of CVE-2025-6211?
How do I remediate CVE-2025-6211?
Dependency Blast Radius
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