ImageMagick <7.1.2-19 DoS via Unbounded XMLTree Destruct
CVE-2026-33908 Published on April 13, 2026
ImageMagick is vulnerable to Stack Overflow in DestroyXMLTree()
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, Magick frees the memory of the XML tree via the `DestroyXMLTree()` function; however, this process is executed recursively with no depth limit imposed. When Magick processes an XML file with deeply nested structures, it will exhaust the stack memory, resulting in a Denial of Service (DoS) attack. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.
Vulnerability Analysis
CVE-2026-33908 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Stack Exhaustion Vulnerability?
The product does not properly control the amount of recursion which takes place, consuming excessive resources, such as allocated memory or the program stack.
CVE-2026-33908 has been classified to as a Stack Exhaustion vulnerability or weakness.
Products Associated with CVE-2026-33908
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Affected Versions
ImageMagick:- Version < 6.9.13-44 is affected.
- Version < 7.1.2-19 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.