AUGUST 21, 2026
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Case File

CVE-2026-55798

MEDIUM · CVSS 4.5 EPSS 0.18% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-06 · Last synced 2026-08-05

CyberRota Analysis

AI-Generated

The Pillow Python imaging library prior to version 12.3.0 contains a vulnerability in the WindowsViewer.get_command() function, which allows for command injection due to improper handling of file paths in shell commands. This flaw can lead to arbitrary command execution on affected Windows systems, posing a risk to applications that utilize this library. Developers and organizations using Pillow for image processing should prioritize updating to version 12.3.0 to mitigate this security risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55798
Severity
MEDIUM
CVSS
4.5
EPSS
0.18%
Windows

Original NVD Description

Pillow is a Python imaging library. Prior to 12.3.0, WindowsViewer.get_command() constructed a cmd.exe shell command by directly embedding a file path into an f-string without escaping and passed the result to subprocess.Popen(..., shell=True), allowing shell metacharacters in the file path to inject arbitrary cmd.exe commands. This issue is fixed in version 12.3.0.

Related CVEs

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