Vulnerability · Published Jul 7, 2025 · Assigned by @huntr_ai
CVE-2025-6210Hardlink-Based Path Traversal in run-llama/llama_index
Medium 6.2
In plain English
A medium-severity path traversal in run-llama/llama_index from run-llama. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | llama-index | 0.5.2 | PYSEC-2025-252 |
| PyPI | llama-index-readers-obsidian | 0.5.2 | GHSA-3j8r-jf9w-5cmh |
| PyPI | llama-index-readers-obsidian | 0.5.2 | PYSEC-2026-1567 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| run-llama | run-llama/llama_index | unspecified – before 0.5.2 |
Weakness: CWE-22 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N