CVE-2026-23876
Heap buffer overflow with attacker-controlled data in XBM parser
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.
INFO
Published Date :
Jan. 20, 2026, 1:15 a.m.
Last Modified :
Jan. 29, 2026, 1:54 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update ImageMagick to version 7.1.2-13 or later.
- Update ImageMagick to version 6.9.13-38 or later.
- Apply vendor patches for ImageMagick.
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-2026-23876.
| URL | Resource |
|---|---|
| https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8 | Patch |
| https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23876 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-2026-23876
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-23876 vulnerability anywhere in the article.
-
Daily CyberSecurity
Redis RCE Exposed: Researchers Detail Exploit for “Simple” Stack Overflow in Official Containers
Image: JFrog Security researchers at JFrog Security Research have publicly disclosed a complete exploit chain for a high-severity vulnerability in Redis, proving that “old school” stack buffer overflo ... Read more
-
Daily CyberSecurity
ImageMagick Alert (CVE-2026-23876): “XBM” Image Uploads Trigger Massive Heap Overflow
A new high-severity vulnerability has been discovered in ImageMagick, the ubiquitous image processing library powering everything from social media platforms to content management systems. Tracked as ... Read more
The following table lists the changes that have been made to the
CVE-2026-23876 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]
Jan. 29, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* versions from (including) 7.0.0-0 up to (excluding) 7.1.2-13 *cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* versions up to (excluding) 6.9.13-38 Added Reference Type GitHub, Inc.: https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8 Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Jan. 20, 2026
Action Type Old Value New Value Added Description ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-190 Added CWE CWE-122 Added Reference https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8 Added Reference https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8