Hardlink-Based Path Traversal in run-llama/llama_index

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-6210
StatePUBLISHED
Assigner@huntr_ai
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-07-07 10:15:29 UTC
Updated2026-06-17 10:01:23 UTC
DescriptionA vulnerability in the ObsidianReader class of the run-llama/llama_index repository, specifically in version 0.12.27, allows for hardlink-based path traversal. This flaw permits attackers to bypass path restrictions and access sensitive system files, such as /etc/passwd, by exploiting hardlinks. The vulnerability arises from inadequate handling of hardlinks in the load_data() method, where the security checks fail to differentiate between real files and hardlinks. This issue is resolved in version 0.5.2.

Risk And Classification

Primary CVSS: v3.0 6.2 MEDIUM from [email protected]

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

EPSS: 0.003340000 probability, percentile 0.252250000 (date 2026-10-18)

Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary6.2MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.0CNADECLARED6.2MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Llamaindex Llamaindex All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Run-llama Run-llama/llama Index affected unspecified 0.5.2 custom Not specified

References

ReferenceSourceLinkTags
huntr.com/bounties/a654b322-a509-4448-a1f5-0f22850b4687 [email protected] huntr.com Exploit, Third Party Advisory
github.com/run-llama/llama_index/commit/a86c96ae0e662492eeb471b658ae849a... [email protected] github.com Patch
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