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CVE-2026-116191— Rclone before 1.75.2 Path Traversal via serve webdav MKCOL

Quick assessment

Affected
rclone rclone
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.

在 1.75.2 版本之前的 Rclone 中， 功能存在路径遍历漏洞。该漏洞允许未经身份验证的攻击者通过发送未经验证的 路径组件，将文件写入到服务根目录之外的位置。攻击者可先发送 以植入一个 VFS 节点，随后利用 、 、 或 操作来创建、覆盖或删除其他租户所属的文件。

CVSS 7.5 · High
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I. Basic Information for CVE-2026-116191

Vulnerability Information
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Vulnerability Title
Rclone before 1.75.2 Path Traversal via serve webdav MKCOL
Source: CVE Program / CVE List V5
Vulnerability Description
Rclone before 1.75.2 contains a path traversal vulnerability in serve webdav that allows unauthenticated attackers to write above the served root by sending an unvalidated '..' path component. Attackers can send MKCOL /.. to plant a VFS node, then PUT, MOVE, COPY, or MKCOL to create, overwrite, or delete files belonging to other tenants.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
rclone rclone 0 ~ 1.75.2 -

II. Public POCs for CVE-2026-116191

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III. Intelligence Information for CVE-2026-116191

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Vendor Advisories for CVE-2026-116191 (2)

Same Patch Batch · rclone · 2026-10-25 · 10 CVEs total

CVE-2026-116189 7.5 HIGH rclone 1.55.0 before 1.75.2 selfupdate Signature Verification Bypass via SHA256SUMS
CVE-2026-116194 6.8 MEDIUM Rclone 1.52.0 before 1.75.2 CSRF via pCloud OAuth Callback
CVE-2026-116195 6.1 MEDIUM Rclone before 1.75.2 Path Traversal via translateLink .rclonelink Suffix Trim
CVE-2026-116192 5.9 MEDIUM rclone from 1.37 before 1.74.2 SSRF via --rc-serve scheme-relative remote roots
CVE-2026-116188 5.3 MEDIUM rclone serve s3 1.75.0 before 1.75.2 Memory Limit Bypass via Multipart Overflow
CVE-2026-116196 5.3 MEDIUM Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url
CVE-2026-116193 5.3 MEDIUM Rclone 1.64.0 before 1.75.2 serve webdav Authentication Bypass via OPTIONS Requests
CVE-2026-116187 5.0 MEDIUM Rclone v1.68.0 before v1.75.2 Authorization Bypass in serve s3 Multipart Uploads
CVE-2026-116190 3.7 LOW rclone v1.56.0 before v1.75.2 WebDAV Credential Header Leak on Redirect

IV. Related Vulnerabilities

Same product: rclone
Same vendor: rclone
Same weakness: CWE-22