A 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.

Metrics

No CVSS v4.0

No CVSS v3.1

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Llamaindex
  • Llamaindex

Configuration 1 [-]

cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/run-llama/llama_index/commit/a86c96ae0e662492eeb471b658ae849a93f628ff cve-icon cve-icon cve-icon
https://huntr.com/bounties/a654b322-a509-4448-a1f5-0f22850b4687 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-6210 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-6210 cve-icon
History

Wed, 30 Jul 2025 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Llamaindex
Llamaindex llamaindex
CPEs cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*
Vendors & Products Llamaindex
Llamaindex llamaindex

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00015}

 epss

{'score': 0.00019}

Tue, 08 Jul 2025 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Moderate

Mon, 07 Jul 2025 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 07 Jul 2025 10:00:00 +0000

Type Values Removed Values Added
Description A 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.
Title Hardlink-Based Path Traversal in run-llama/llama_index
Weaknesses CWE-22
References
Metrics cvssV3_0

{'score': 6.2, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published: 2025-07-07T09:55:46.893Z

Updated: 2025-07-07T12:17:09.857Z

Reserved: 2025-06-17T17:35:10.416Z

Link: CVE-2025-6210

cve-icon Vulnrichment

Updated: 2025-07-07T12:17:03.273Z

cve-icon NVD

Status : Analyzed

Published: 2025-07-07T10:15:29.040

Modified: 2025-07-30T20:01:47.780

Link: CVE-2025-6210

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-07-07T09:55:46Z

Links: CVE-2025-6210 - Bugzilla