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CVE-2026-73509— OpenList: Authenticated users can rename files outside their base path via batch rename `src_name` traversal

Quick assessment

Affected
OpenListTeam OpenList
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenList Team OpenList是中国OpenList Team团队的一款清单管理工具。 OpenList Team OpenList 4.2.4之前版本存在路径遍历漏洞，该漏洞源于batch_rename处理器未验证src_name参数，可能导致路径遍历，造成跨用户文件完整性损失、有限可用性影响和文件存在性泄露。

CVSS 7.6 · High EPSS 0.52% · P42

Affected Version Matrix 1

VendorProduct Version RangeStatus
OpenListTeam OpenList < 4.2.4 affected
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I. Basic Information for CVE-2026-73509

Vulnerability Information
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Vulnerability Title
OpenList: Authenticated users can rename files outside their base path via batch rename `src_name` traversal
Source: CVE Program / CVE List V5
Vulnerability Description
OpenList a file list program that supports multiple storage. Prior to 4.2.4, the authenticated /api/fs/batch_rename handler in server/handles/fsbatch.go authorizes only the source directory produced by user.JoinPath(req.SrcDir) and validates renameObject.NewName with checkRelativePath, but does not validate attacker-controlled renameObject.SrcName, supplied as src_name, before concatenating it with the authorized path and passing the result to fs.Rename. A user with rename permission can use traversal segments in src_name to make path normalization select a file outside the authorized directory and configured base path, resulting in cross-user file integrity loss, limited availability impact, and file-existence disclosure through success or error responses. This issue is fixed in version 4.2.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenList Team OpenList 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenList Team OpenList是中国OpenList Team团队的一款清单管理工具。 OpenList Team OpenList 4.2.4之前版本存在路径遍历漏洞，该漏洞源于batch_rename处理器未验证src_name参数，可能导致路径遍历，造成跨用户文件完整性损失、有限可用性影响和文件存在性泄露。
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
OpenListTeam OpenList < 4.2.4 -

II. Public POCs for CVE-2026-73509

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7206 chars
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III. Intelligence Information for CVE-2026-73509

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Patches & Fixes for CVE-2026-73509 (1)

Vendor Advisories for CVE-2026-73509 (1)

Vendor Pages for CVE-2026-73509 (1)

IV. Related Vulnerabilities

Same product: OpenList
Same vendor: OpenListTeam
Same weakness: CWE-22

V. Comments for CVE-2026-73509

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