Vulnerability · Published Aug 7, 2026 · Assigned by CPANSec
CVE-2026-17435File::Rotate::Simple versions before 0.4.0 for Perl create the target of dangling symlinks when rotating files
Low 2.5
In plain English
A low-severity security flaw in File::Rotate::Simple from RRWO. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| RRWO | File::Rotate::Simple | 0 – before 0.4.0 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- https://github.com/robrwo/File-Rotate-Simple/commit/ead3f5c0e51217b34d286aa243949dba60b39eba.patch patch
- https://github.com/robrwo/File-Rotate-Simple/security/advisories/GHSA-fpmm-8f6h-wv74 vendor-advisory
- https://metacpan.org/release/RRWO/File-Rotate-Simple-v0.4.0/changes release-notes
- http://www.openwall.com/lists/oss-security/2026/08/07/7