CVE-2026-11527
Publication date 15 June 2026
Last updated 19 June 2026
Ubuntu priority
Description
Config::IniFiles versions before 3.001000 for Perl allow OS command injection and file overwrite via a 2-arg open() of the -file argument in _make_filehandle. Config::IniFiles::_make_filehandle opens a filename argument with Perl's 2-arg open(), so a filename that begins or ends with a pipe ("| cmd", "cmd |") or begins with a redirect ("> path", ">> path") is run as a command or redirect rather than opened as a file. The helper is the open path behind the documented -file argument: new(-file => $thing) reaches it through ReadConfig. An in-memory scalar reference (-file => \$text) does not open a path and is unaffected. Any caller that forwards untrusted input to the -file argument can run an arbitrary command or truncate a file under the process UID.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libconfig-inifiles-perl | 26.04 LTS resolute |
Fixed 3.000003-4ubuntu0.1
|
| 25.10 questing |
Fixed 3.000003-3ubuntu0.1
|
|
| 24.04 LTS noble |
Fixed 3.000003-2ubuntu0.1
|
|
| 22.04 LTS jammy |
Fixed 3.000003-1ubuntu0.1
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
8.6 · High
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H