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CVE-2026-14863— FileRun 2026.2.0 RCE via Thumbnail Generation Command Injection

CVSS 8.8 · High EPSS 1.67% · P75

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProductVersion RangeStatus
FileRunFileRun≤ 2026.2.0affected
2026.2.1unaffected
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I. Basic Information for CVE-2026-14863

Vulnerability Information
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Vulnerability Title
FileRun 2026.2.0 RCE via Thumbnail Generation Command Injection
Source: CVE Program / CVE List V5
Vulnerability Description
FileRun up to and including version 2026.2.0 contains an OS command injection vulnerability that allows authenticated attackers to achieve remote code execution by uploading a file with a malicious filename containing shell command substitution sequences. The thumbnail generation system passes filenames wrapped in shell double-quotes directly to exec() without escapeshellarg() sanitization, allowing filenames such as $(PAYLOAD).mp4 to survive the filename sanitizer and be evaluated as shell commands when ffmpeg, ImageMagick, vips, or stl-thumb processes the file during thumbnail generation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
FileRun 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FileRun是FileRun公司开源的一款文件管理与加密软件。 FileRun 2026.2.0及之前版本存在命令注入漏洞，该漏洞源于缩略图生成系统将文件名直接传递给exec()而未使用escapeshellarg()进行清理，导致包含shell命令替换序列的文件名被当作shell命令执行，可能允许经过身份验证的攻击者通过上传恶意文件名实现远程代码执行。
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

VendorProductAffected VersionsCPESubscribe
FileRunFileRun 0 ~ 2026.2.0 -

II. Public POCs for CVE-2026-14863

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III. Intelligence Information for CVE-2026-14863

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Vendor Advisories for CVE-2026-14863 (1)

Security Blog Posts for CVE-2026-14863 (1)

Vendor Pages for CVE-2026-14863 (2)

IV. Related Vulnerabilities

Same weakness: CWE-78

V. Comments for CVE-2026-14863

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