EUVD-2025-20216
GHSA-fmrf-6jv9-qjc7
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
5Description
A vulnerability in the `ObsidianReader` class of the run-llama/llama_index repository, versions 0.12.23 to 0.12.28, allows for arbitrary file read through symbolic links. The `ObsidianReader` fails to resolve symlinks to their real paths and does not validate whether the resolved paths lie within the intended directory. This flaw enables attackers to place symlinks pointing to files outside the vault directory, which are then processed as valid Markdown files, potentially exposing sensitive information.
Analysis
A vulnerability in the ObsidianReader class of the run-llama/llama_index repository, versions 0.12.23 to 0.12.28, allows for arbitrary file read through symbolic links. The ObsidianReader fails to resolve symlinks to their real paths and does not validate whether the resolved paths lie within the intended directory. This flaw enables attackers to place symlinks pointing to files outside the vault directory, which are then processed as valid Markdown files, potentially exposing sensitive information.
Technical Context
Path traversal allows an attacker to access files outside the intended directory by manipulating file paths with sequences like '../'.
Affected Products
Affected products: Llamaindex Llamaindex
Remediation
A vendor patch is available — apply it immediately. Validate and sanitize file path inputs. Use a whitelist of allowed files or directories. Implement chroot jails or containerization.
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External POC / Exploit Code
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