ImageMagick: Code Injection via PostScript header in ps coders

Description

The ps encoders, responsible for writing PostScript files, fails to sanitize the input before writing it into the PostScript header. An attacker can provide a malicious file and inject arbitrary PostScript code. When the resulting file is processed by a printer or a viewer (like Ghostscript), the injected code is interpreted and executed.

The html encoder does not properly escape strings that are written to in the html document. An attacker can provide a malicious file and injection arbitrary html code.

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2026-02-24 15:34:26 UTC
Updated
2026-02-24 15:34:27 UTC
GitHub reviewed
2026-02-24 15:34:26 UTC
NVD published
2026-02-23

EPSS Score

Score Percentile
0.01% 0.79%

CVSS Scores

Base score Version Severity Vector
5.7 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.

Identifiers

CWEs

CWE id Name
CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected packages (18)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
nuget Magick.NET-Q16-AnyCPU < 14.10.3 14.10.3
nuget Magick.NET-Q16-HDRI-AnyCPU < 14.10.3 14.10.3
nuget Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.10.3 14.10.3
nuget Magick.NET-Q16-HDRI-OpenMP-x64 < 14.10.3 14.10.3
nuget Magick.NET-Q16-HDRI-arm64 < 14.10.3 14.10.3
nuget Magick.NET-Q16-HDRI-x64 < 14.10.3 14.10.3
nuget Magick.NET-Q16-HDRI-x86 < 14.10.3 14.10.3
nuget Magick.NET-Q16-OpenMP-x64 < 14.10.3 14.10.3
nuget Magick.NET-Q16-OpenMP-x86 < 14.10.3 14.10.3
nuget Magick.NET-Q16-arm64 < 14.10.3 14.10.3
nuget Magick.NET-Q16-x86 < 14.10.3 14.10.3
nuget Magick.NET-Q8-AnyCPU < 14.10.3 14.10.3
nuget Magick.NET-Q8-OpenMP-arm64 < 14.10.3 14.10.3
nuget Magick.NET-Q8-OpenMP-x64 < 14.10.3 14.10.3
nuget Magick.NET-Q8-arm64 < 14.10.3 14.10.3
nuget Magick.NET-Q8-x64 < 14.10.3 14.10.3
nuget Magick.NET-Q8-x86 < 14.10.3 14.10.3
nuget Magick.NET-Q16-OpenMP-arm64 < 14.10.3 14.10.3

References

cvelogic Threat Intelligence