PYSEC-2026-1567
LlamaIndex vulnerability in its ObsidianReader class can lead to Path Traversal exploit
Quick fix
PYSEC-2026-1567 — llama-index-readers-obsidian: upgrade to the fixed version with the command below.
pip install --upgrade 'llama-index-readers-obsidian>=0.5.2'Details
A vulnerability in the ObsidianReader class of the run-llama/llama_index repository, before version 0.5.2 (specifically in version 0.12.27 of llama-index), 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 llama-index-readers-obsidian version 0.5.2.
Are you affected?
Enter the version of the package you're using.
Affected packages
0Fixed in: 0.5.2pip install --upgrade 'llama-index-readers-obsidian>=0.5.2'References
- https://nvd.nist.gov/vuln/detail/CVE-2025-6210[ADVISORY]
- https://github.com/run-llama/llama_index/commit/a86c96ae0e662492eeb471b658ae849a93f628ff[WEB]
- https://github.com/run-llama/llama_index[PACKAGE]
- https://huntr.com/bounties/a654b322-a509-4448-a1f5-0f22850b4687[WEB]
- https://pypi.org/project/llama-index-readers-obsidian[PACKAGE]
- https://github.com/advisories/GHSA-3j8r-jf9w-5cmh[ADVISORY]