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CVE-2026-54572— rclone: Unvalidated symlink target in local `--links` — arbitrary file write from an untrusted remote

Quick assessment

Affected
rclone rclone
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.

Rclone是Rclone团队开源的一款同步文件到各类云存储服务的命令行工具。 Rclone 1.74.4之前版本存在后置链接漏洞，该漏洞源于在使用-l/--links参数时，将符号链接序列化为.rclonelink文本对象并在本地目标上重新创建时未验证目标，允许攻击者控制的远程服务器植入逃逸符号链接，导致后续对象写入落入目标之外并包含攻击者选择的内容。

CVSS 7.5 · High EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1564.004 · NTFS File Attributes

Affected Version Matrix 1

VendorProduct Version RangeStatus
rclone rclone < 1.74.4 affected
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I. Basic Information for CVE-2026-54572

Vulnerability Information
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Vulnerability Title
rclone: Unvalidated symlink target in local `--links` — arbitrary file write from an untrusted remote
Source: CVE Program / CVE List V5
Vulnerability Description
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.74.4, with -l/--links, rclone serializes symlinks as .rclonelink text objects and recreates them on a local destination without validating the target, allowing an attacker-controlled remote to plant an escaping symlink and cause a following object write to land outside the destination with attacker-chosen contents. This issue is fixed in version 1.74.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
Rclone 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rclone是Rclone团队开源的一款同步文件到各类云存储服务的命令行工具。 Rclone 1.74.4之前版本存在后置链接漏洞，该漏洞源于在使用-l/--links参数时，将符号链接序列化为.rclonelink文本对象并在本地目标上重新创建时未验证目标，允许攻击者控制的远程服务器植入逃逸符号链接，导致后续对象写入落入目标之外并包含攻击者选择的内容。
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
rclone rclone < 1.74.4 -

II. Public POCs for CVE-2026-54572

# POC Description Source Link Shenlong Link
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Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
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Qwen3.6-35B-A3B · 8397 chars
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III. Intelligence Information for CVE-2026-54572

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Patches & Fixes for CVE-2026-54572 (2)

Vendor Advisories for CVE-2026-54572 (1)

Vendor Pages for CVE-2026-54572 (1)

Same Patch Batch · rclone · 2026-07-14 · 3 CVEs total

CVE-2026-59733 8.8 HIGH rclone `serve restic --private-repos` authorization bypass: `..` in the URL path lets an a
CVE-2026-59732 5.0 MEDIUM rclone archive extract allows S3 destination prefix escape via crafted archive paths

IV. Related Vulnerabilities

Same product: rclone
Same vendor: rclone
Same weakness: CWE-59

V. Comments for CVE-2026-54572

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