CVE-2026-33908
CVE-2026-33908 is a high-severity vulnerability in Imagemagick with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-674.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (40th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-22110
- Weakness: CWE-674
- Affected product: Imagemagick
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-33908?
- 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.
- How severe is CVE-2026-33908?
- CVE-2026-33908 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-33908 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-33908?
- CVE-2026-33908 affects Imagemagick. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-33908?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-33908 have an EU (EUVD) identifier?
- Yes. CVE-2026-33908 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22110.
- When was CVE-2026-33908 published?
- CVE-2026-33908 was published on 2026-04-13 and last updated on 2026-06-30.
References
- https://github.com/ImageMagick/ImageMagick/commit/ccdc01180276aa2cb3d4a32a611aa4f417061cd8
- https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fwvm-ggf6-2p4x
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0
- https://access.redhat.com/security/cve/CVE-2026-33908
- https://bugzilla.redhat.com/show_bug.cgi?id=2458041
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33908.json
Affected products (1)
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
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