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CVE-2026-119364— ProFTPD through 1.3.9e and 1.3.10rc4 mod_copy Symlink Following Write Bypass

Quick assessment

Affected
ProFTPD Project ProFTPD
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.

ProFTPD 1.3.9e 及 1.3.10rc1 至 1.3.10rc4 版本中，mod_copy 模块存在一个符号链接跟踪漏洞。该漏洞允许已认证的 FTP 用户通过符号链接绕过"Limit WRITE"限制。攻击者可在可写目录中创建符号链接，并利用 SITE COPY 或 SITE CPTO 命令覆盖原本禁止写入位置中的文件。

CVSS 5.3 · Medium
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I. Basic Information for CVE-2026-119364

Vulnerability Information
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Vulnerability Title
ProFTPD through 1.3.9e and 1.3.10rc4 mod_copy Symlink Following Write Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a link-following vulnerability in mod_copy that allows authenticated FTP users to bypass Limit WRITE restrictions via symlinks. Attackers can place a symlink in a writable directory and use SITE COPY or SITE CPTO to overwrite files in write-denied locations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
ProFTPD Project ProFTPD 0 ~ 1.3.9e -

II. Public POCs for CVE-2026-119364

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III. Intelligence Information for CVE-2026-119364

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Patches & Fixes for CVE-2026-119364 (1)

Vendor Advisories for CVE-2026-119364 (1)

Security Blog Posts for CVE-2026-119364 (1)

Vendor Pages for CVE-2026-119364 (1)

Other References for CVE-2026-119364 (1)

Same Patch Batch · ProFTPD Project · 2026-10-30 · 3 CVEs total

CVE-2026-119146 5.6 MEDIUM ProFTPD before 1.3.9e and 1.3.10rc5 Buffer Overflow via mod_rewrite utf8trans RewriteMap
CVE-2026-119147 4.3 MEDIUM ProFTPD before 1.3.9e and 1.3.10rc5 mod_sftp Copy-File Authorization Bypass

IV. Related Vulnerabilities

Same product: ProFTPD
Same vendor: ProFTPD Project
Same weakness: CWE-59