{"id":"PYSEC-2026-1567","summary":"LlamaIndex vulnerability in its ObsidianReader class can lead to Path Traversal exploit","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.","aliases":["CVE-2025-6210","GHSA-3j8r-jf9w-5cmh","PYSEC-2025-252"],"modified":"2026-07-13T07:26:33.207198286Z","published":"2026-07-07T16:02:56.964090Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6210"},{"type":"WEB","url":"https://github.com/run-llama/llama_index/commit/a86c96ae0e662492eeb471b658ae849a93f628ff"},{"type":"PACKAGE","url":"https://github.com/run-llama/llama_index"},{"type":"WEB","url":"https://huntr.com/bounties/a654b322-a509-4448-a1f5-0f22850b4687"},{"type":"PACKAGE","url":"https://pypi.org/project/llama-index-readers-obsidian"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-3j8r-jf9w-5cmh"}],"affected":[{"package":{"name":"llama-index-readers-obsidian","ecosystem":"PyPI","purl":"pkg:pypi/llama-index-readers-obsidian"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.2"}]}],"versions":["0.0.1","0.1.0","0.1.1","0.1.2","0.1.3","0.2.0","0.3.0","0.4.0","0.5.0","0.5.1"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/llama-index-readers-obsidian/PYSEC-2026-1567.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}