CVE-2026-17435
File::Rotate::Simple versions before 0.4.0 for Perl create the target of dangling symlinks when rotating files
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.
INFO
Published Date :
Aug. 7, 2026, 7:17 p.m.
Last Modified :
Oct. 23, 2026, 8:10 p.m.
Remotely Exploit :
No
Source :
9b29abf9-4ab0-4765-b253-1875cd9b441e
Affected Products
The following products are affected by CVE-2026-17435
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | LOW | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update File::Rotate::Simple to version 0.4.0 or later.
- Disable the 'touch' option if updating is not possible.
- Review file rotation permissions and configurations.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-17435.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-17435 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-17435
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-17435 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-17435 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: File::Rotate::Simple de RRWO, Description: Las versiones de File::Rotate::Simple anteriores a la 0.4.0 para Perl crean el objetivo de enlaces simbólicos colgantes al rotar archivos. Cuando el archivo a rotar es un enlace simbólico a un archivo faltante, y la opción ’touch’ está habilitada, entonces el método ’rotate’ asume que el archivo está ausente (ya que la verificación de existencia es contra el objetivo), y no lo rota. Pero toca el archivo, lo que crea el objetivo. Un atacante que tiene la capacidad de crear el enlace simbólico puede usar esto para crear un archivo arbitrario con los permisos del proceso que rota los archivos (lo que puede ser diferente del proceso que normalmente escribe en el archivo de registro que se está rotando). Tenga en cuenta que la opción ’touch’ está deshabilitada por defecto. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 11, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N Added SSVC {'id': 'CVE-2026-17435', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-11T20:12:51.327011Z'} -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Aug. 07, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/08/07/7 -
New CVE Received by 9b29abf9-4ab0-4765-b253-1875cd9b441e
Aug. 07, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/robrwo/File-Rotate-Simple', 'vendor': 'RRWO', 'product': 'File::Rotate::Simple', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '0.4.0', 'versionType': 'custom'}], 'packageName': 'File-Rotate-Simple', 'programFiles': ['lib/File/Rotate/Simple.pm'], 'collectionURL': 'https://cpan.org/modules', 'defaultStatus': 'unaffected', 'programRoutines': [{'name': 'File::Rotate::Simple::_build_files_to_rotate'}, {'name': 'File::Rotate::Simple::rotate'}]}] Added 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. Added CWE CWE-59 Added Reference https://github.com/robrwo/File-Rotate-Simple/commit/ead3f5c0e51217b34d286aa243949dba60b39eba.patch Added Reference https://github.com/robrwo/File-Rotate-Simple/security/advisories/GHSA-fpmm-8f6h-wv74 Added Reference https://metacpan.org/release/RRWO/File-Rotate-Simple-v0.4.0/changes