Medium
Hardlink-Based Path Traversal in run-llama/llama_index
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-6210
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 05:12 UTC · Revision 1
Source evidence
Hardlink-Based Path Traversal in run-llama/llama_index
core-osv · Original sourcePublished 7 Jul 2025, 09:55 UTC
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.
osv:CVE-2025-6210
Complete source record
{
"id": "746fdeb8baa943e54bda2edac58cef1ad429178bcbff2f7f72052bc575788e67",
"url": "https://osv.dev/vulnerability/CVE-2025-6210",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Hardlink-Based Path Traversal in run-llama/llama_index",
"summary": "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.",
"evidence": "osv:CVE-2025-6210",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2025-6210",
"aliases": [
"CVE-2025-6210",
"GHSA-3j8r-jf9w-5cmh",
"PYSEC-2025-252",
"PYSEC-2026-1567"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
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"type": "GIT",
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{
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{
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"source": "CPE_RANGE"
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{
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"source": "REFERENCES_COMMIT"
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6210.json"
}
}
],
"modified": "2026-10-28T02:30:26.091528389Z",
"provider": "osv",
"references": [
"https://huntr.com/bounties/a654b322-a509-4448-a1f5-0f22850b4687",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6210.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-6210",
"https://github.com/run-llama/llama_index/commit/a86c96ae0e662492eeb471b658ae849a93f628ff"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6210.json"
}
},
"related_cves": [
{
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"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 492662,
"published_at": "2025-07-07T09:55:46.893+00:00"
}