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CVE-2026-25628— Qdrant affected by arbitrary file write via `/logger` endpoint

Quick assessment

Affected
qdrant qdrant
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Qdrant是Qdrant开源的一个矢量相似性搜索引擎和矢量数据库。 Qdrant 1.9.3至1.16.0之前版本存在安全漏洞，该漏洞源于/logger端点允许通过攻击者控制的on_disk.log_file路径向任意文件追加内容，可能导致任意文件写入。

CVSS 8.6 · High EPSS 0.54% · P46

Possible ATT&CK Techniques 1 AI

T1565.001 · Stored Data Manipulation
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I. Basic Information for CVE-2026-25628

Vulnerability Information
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Vulnerability Title
Qdrant affected by arbitrary file write via `/logger` endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Qdrant is a vector similarity search engine and vector database. From 1.9.3 to before 1.16.0, it is possible to append to arbitrary files via /logger endpoint using an attacker-controlled on_disk.log_file path. Minimal privileges are required (read-only access). This vulnerability is fixed in 1.16.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Qdrant 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qdrant是Qdrant开源的一个矢量相似性搜索引擎和矢量数据库。 Qdrant 1.9.3至1.16.0之前版本存在安全漏洞，该漏洞源于/logger端点允许通过攻击者控制的on_disk.log_file路径向任意文件追加内容，可能导致任意文件写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
qdrant qdrant >= 1.9.3, < 1.16.0 -

II. Public POCs for CVE-2026-25628

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III. Intelligence Information for CVE-2026-25628

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IV. Related Vulnerabilities

Same product: qdrant
Same vendor: qdrant
Same weakness: CWE-73