CVE-2026-40312
ImageMagick: Off-by-One in MSL decoder could result in crash
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, an off by one error in the MSL decoder could result in a crash when a malicous MSL file is read. This issue has been fixed in version 7.1.2-19.
INFO
Published Date :
April 13, 2026, 10:16 p.m.
Last Modified :
April 17, 2026, 8:42 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update ImageMagick to version 7.1.2-19.
- Avoid processing untrusted MSL files.
Public PoC/Exploit Available at Github
CVE-2026-40312 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-40312.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-40312 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-40312
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-40312 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-40312 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* versions up to (excluding) 7.1.2-19 Added Reference Type GitHub, Inc.: https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/ImageMagick/ImageMagick/commit/2a06c7be3bba3326caf8b7a8d1fa2e0d4b88998d Types: Patch Added Reference Type GitHub, Inc.: https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5xg3-585r-9jh5 Types: Vendor Advisory -
New CVE Received by [email protected]
Apr. 13, 2026
Action Type Old Value New Value Added Description ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, an off by one error in the MSL decoder could result in a crash when a malicous MSL file is read. This issue has been fixed in version 7.1.2-19. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-193 Added Reference https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0 Added Reference https://github.com/ImageMagick/ImageMagick/commit/2a06c7be3bba3326caf8b7a8d1fa2e0d4b88998d Added Reference https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19 Added Reference https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5xg3-585r-9jh5