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.
References (2)
Core 2
Core References
Exploit, Third Party Advisory
https://huntr.com/bounties/a654b322-a509-4448-a1f5-0f22850b4687
Scores
CVSS v3
6.2
EPSS
0.0014
EPSS Percentile
33.5%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (2)
llamaindex/llamaindex
< 0.5.2
pypi/llama-index-readers-obsidian
0 - 0.5.2PyPI
Published
Jul 07, 2025
Tracked Since
Feb 18, 2026