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VulnerabilityPublished Updated

CVE-2026-17435: RRWO File::Rotate::Simple · Link Following

Affects RRWO File::Rotate::SimpleSource CVE Database V5

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Not known to be exploited · CVSS 2.5 Low : upgrade to 0.4.0 when convenient.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
2.5Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.4.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade File::Rotate::Simple and File-Rotate-Simple to 0.4.0.

Affected software

ProductAffectedFixed in
RRWOFile::Rotate::SimpleAffected
  • <0.4.0
Fixed in
  • 0.4.0
GitHubFile-Rotate-Simplepkg:github/File-Rotate-SimpleOther threatsAffected
  • <0.4.0
Fixed in
  • 0.4.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Since the vulnerability requires the 'touch' option to be enabled (which is disabled by default), the immediate mitigation is to ensure that the 'touch' option remains disabled unless absolutely necessary.

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.

References

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