CVE-2025-6210 | Hardlink-Based Path Traversal in run-llama/llama_index

Exp

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.

Published: 2025-07-07 Last update: 2025-07-30 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-6210 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.29%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-6210

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-6210

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.05% 0.29% +0.24%
2 2026-04-02 0.01% 0.05% +0.04%
3 2025-07-07 — 0.01% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-6210

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.2 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.5 3.6 [email protected]

Weakness enumeration for CVE-2025-6210

GitHub Security Advisory for CVE-2025-6210

GHSA-3j8r-jf9w-5cmh · Severity: medium · Ecosystem: pip — LlamaIndex vulnerability in its ObsidianReader class can lead to Path Traversal exploit

OS Trackers for CVE-2025-6210

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2025-6210

Affected software / configurations for CVE-2025-6210

Vendor Product Version Raw CPE
llamaindex llamaindex < 0.5.2 cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*

References for CVE-2025-6210

cvelogic Threat Intelligence