---
cve: "CVE-2026-11527"
severity: "HIGH"
cvss: 8.6
epss: "1.1%"
vendor: "SHLOMIF"
kev: false
exploited: false
published: "2026-06-14 11:40:45"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-11-06T20:42:07+01:00"
---

# CVE-2026-11527

> 8.6 HIGH · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **CPANSec**
- State: PUBLISHED
- Stand: 2026-06-19 20:31:36

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-73** — External Control of File Name or Path
  The product allows user input to control or influence paths or file names that are used in filesystem operations.
- **CWE-78** — Improper Neutralization of Special Elements used in an OS Command
  The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.

## Angriffsmuster (CAPEC)

- [CAPEC-13 — Subverting Environment Variable Values](https://capec.mitre.org/data/definitions/13.html) _(Severity: Very High)_
- [CAPEC-64 — Using Slashes and URL Encoding Combined to Bypass Validation Logic](https://capec.mitre.org/data/definitions/64.html) _(Severity: High)_
- [CAPEC-72 — URL Encoding](https://capec.mitre.org/data/definitions/72.html) _(Severity: High)_
- [CAPEC-76 — Manipulating Web Input to File System Calls](https://capec.mitre.org/data/definitions/76.html) _(Severity: Very High)_
- [CAPEC-78 — Using Escaped Slashes in Alternate Encoding](https://capec.mitre.org/data/definitions/78.html) _(Severity: High)_
- [CAPEC-79 — Using Slashes in Alternate Encoding](https://capec.mitre.org/data/definitions/79.html) _(Severity: High)_
- [CAPEC-80 — Using UTF-8 Encoding to Bypass Validation Logic](https://capec.mitre.org/data/definitions/80.html) _(Severity: High)_
- [CAPEC-267 — Leverage Alternate Encoding](https://capec.mitre.org/data/definitions/267.html) _(Severity: High)_

## ATT&CK-Techniken

- [T1562.003 — Impair Defenses:Impair Command History Logging](https://attack.mitre.org/techniques/T1562/003/)
- [T1574.006 — Hijack Execution Flow:Dynamic Linker Hijacking](https://attack.mitre.org/techniques/T1574/006/)
- [T1574.007 — Hijack Execution Flow:Path Interception by PATH Environment ](https://attack.mitre.org/techniques/T1574/007/)
- [T1027 — Obfuscated Files or Information](https://attack.mitre.org/techniques/T1027/)

## Patch verfügbar (OSV)

- 7040f46c00fade6ed81af18589c0de9b8d2f667a (Commit)
- 3e48f9627fbba4dae5de35be1f735cdeb7e47fb8 (Commit)

## Referenzen

- <https://github.com/shlomif/perl-Config-IniFiles/commit/3e48f9627fbba4dae5de35be1f735cdeb7e47fb8.patch>
- <https://metacpan.org/release/SHLOMIF/Config-IniFiles-3.001000/changes>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-11527/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_