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CVE-2026-17435— File::Rotate::Simple versions before 0.4.0 for Perl create the target of dangling symlinks when rotating files

Quick assessment

Affected
RRWO File::Rotate::Simple
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.

RRWO File::Rotate::Simple是RRWO个人开发者开源的一个简单的文件轮转模块。 RRWO File::Rotate::Simple 0.4.0之前版本存在后置链接漏洞，该漏洞源于处理悬空符号链接时存在问题，可能导致攻击者以旋转文件的进程权限创建任意文件。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle

Affected Version Matrix 1

VendorProduct Version RangeStatus
RRWO File::Rotate::Simple < 0.4.0 affected
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I. Basic Information for CVE-2026-17435

Vulnerability Information
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Vulnerability Title
File::Rotate::Simple versions before 0.4.0 for Perl create the target of dangling symlinks when rotating files
Source: CVE Program / CVE List V5
Vulnerability Description
File::Rotate::Simple versions before 0.4.0 for Perl create the target of dangling symlinks when rotating files. When the file to be rotated is a symbolic link to a missing file, and the touch option is enabled, then the rotate method assumes that the file is absent (since the existence check is against the target), and does not rotate it. But it touches the file, which creates the target. An attacker that has the ability to create the symlink can use this to create an arbitrary file with permissions of the process rotating the files (which may be different from the process that normally writes to the log file that is being rotated). Note that the touch option is disabled by default.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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
RRWO File::Rotate::Simple 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RRWO File::Rotate::Simple是RRWO个人开发者开源的一个简单的文件轮转模块。 RRWO File::Rotate::Simple 0.4.0之前版本存在后置链接漏洞，该漏洞源于处理悬空符号链接时存在问题，可能导致攻击者以旋转文件的进程权限创建任意文件。
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
RRWO File::Rotate::Simple 0 ~ 0.4.0 -

II. Public POCs for CVE-2026-17435

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III. Intelligence Information for CVE-2026-17435

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Patches & Fixes for CVE-2026-17435 (1)

Vendor Advisories for CVE-2026-17435 (1)

Other References for CVE-2026-17435 (1)

IV. Related Vulnerabilities

Same vendor: RRWO
Same weakness: CWE-59

V. Comments for CVE-2026-17435

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