Vulnerability in Rrwo File::rotate::simple

CVE-2026-17435

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.

EPSS: 0.001 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17435?
CVE-2026-17435 is a low-severity vulnerability in Rrwo File::rotate::simple, classified under Improper Link Resolution Before File Access. CVSS score: 2.5/10. Published 2026-08-07.
How severe is CVE-2026-17435?
Low severity. CVSS v3 base score is 2.5 out of 10.