# CVE-2026-11527: libconfig-inifiles-perl: Config::IniFiles versions before 3.001000 for Perl allow OS command injection and file overwrite via a 2-arg open() o...

CVE-2026-11527 is fixed in 2 products on 1 platform, first by libconfig-inifiles-perl 3.000003-4ubuntu0.1, released June 14, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-11527
- Priority: High
- CVSS: 8.6 (high)
- EPSS: 0.0107
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 14, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libconfig-inifiles-perl Debian 12.15 (bookworm) | 3.000003-2+deb12u1 | [DEBIAN-CVE-2026-11527](https://patchblox.com/security/data/fix/linux/debian-cve-2026-11527.md) | Jun 24, 2026 |
| Linux | libconfig-inifiles-perl Debian 13.5 (trixie) | 3.000003-3+deb13u1 | [DEBIAN-CVE-2026-11527](https://patchblox.com/security/data/fix/linux/debian-cve-2026-11527.md) | Jun 24, 2026 |
| Linux | libconfig-inifiles-perl Debian 14 | 3.000003-5 | [DEBIAN-CVE-2026-11527](https://patchblox.com/security/data/fix/linux/debian-cve-2026-11527.md) | Jun 24, 2026 |
| Linux | libconfig-inifiles-perl Ubuntu 22.04.1 LTS (jammy) | 3.000003-1ubuntu0.1 | [libconfig-inifiles-perl 3.000003-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libconfig-inifiles-perl-3.000003-1ubuntu0.1.md) | Jun 24, 2026 |
| Linux | libconfig-inifiles-perl Ubuntu 24.04.5 LTS (noble) | 3.000003-2ubuntu0.1 | [libconfig-inifiles-perl 3.000003-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libconfig-inifiles-perl-3.000003-2ubuntu0.1.md) | Jun 24, 2026 |
| Linux | libconfig-inifiles-perl Ubuntu 25.10 (questing) | 3.000003-3ubuntu0.1 | [libconfig-inifiles-perl 3.000003-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libconfig-inifiles-perl-3.000003-3ubuntu0.1.md) | Jun 24, 2026 |
| Linux | libconfig-inifiles-perl Ubuntu 26.04.1 LTS (resolute) | 3.000003-4ubuntu0.1 | [libconfig-inifiles-perl 3.000003-4ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libconfig-inifiles-perl-3.000003-4ubuntu0.1.md) | Jun 14, 2026 |
| Linux | perl-Config-IniFiles opensuse-leap 16.0 | 3.000003-160000.3.1 | [OPENSUSE-SU-2026:21012-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21012-1.md) | Jun 22, 2026 |
| Linux | perl-Config-IniFiles sles 15.6 | 2.94-150000.3.3.1 | [SUSE-SU-2026:2710-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2710-1.md) | Jun 30, 2026 |
| Linux | perl-Config-IniFiles sles 15.7 | 2.94-150000.3.3.1 | [SUSE-SU-2026:2710-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2710-1.md) | Jun 30, 2026 |
| Linux | perl-Config-IniFiles sles 16.0 | 3.000003-160000.3.1 | [SUSE-SU-2026:22329-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22329-1.md) | Jun 22, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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