CVE-2026-55597
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-26, an incorrect handling of arguments can cause a heap buffer over-write in the JP2 encoder. This issue has been fixed in version7.1.2-26.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceImageMagick versions prior to 7.1.2-26 contain a heap buffer overflow vulnerability in the JP2 (JPEG 2000) encoder. The issue stems from incorrect handling of arguments when processing JP2 images, potentially allowing an attacker to corrupt heap memory via a specially crafted image file.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 7.1.2-26CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed ImageMagick versionRun 'magick --version' or 'convert --version' to determine the installed version numberAffected if Version is earlier than 7.1.2-26 (for example, 7.1.2-25, 7.1.1-x, 6.x.x, etc.)
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Verify JP2/JPEG2000 coder support is loadedRun 'magick -list configure | grep DELEGATES' or check the coders directory for jp2 support, or run 'magick identify -list format | grep -i jp2'Affected if JP2/JPEG2000 format is listed as supported or the delegate library is present
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Confirm JP2 image processing capabilityAttempt to identify a JP2 file with 'magick identify image.jp2' or check if ImageMagick can read JP2 filesAffected if ImageMagick successfully reads or processes JP2 files, indicating the vulnerable encoder code path is accessible
The environment is affected if ImageMagick version is earlier than 7.1.2-26 AND JP2/JPEG2000 processing functionality is enabled and accessible.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped7.1.2-26
Upgrade ImageMagick to version 7.1.2-26 or later to remediate this vulnerability. Alternatively, disable or restrict processing of JP2/JPEG2000 image formats if upgrade is not immediately feasible.
ImageMagick 7.1.2-26
- 1. Verify current ImageMagick version by running 'convert -version' or 'magick -version'
- 2. Download ImageMagick version 7.1.2-26 or later from the official ImageMagick repository (imagemagick.org) or your system's package manager
- 3. For source compilation: download the latest version from github.com/ImageMagick/ImageMagick and compile with standard build options
- 4. For package managers: update your package repository and install the new version (e.g., 'apt-get update && apt-get install imagemagick' or equivalent for your OS)
- 5. Verify the installation by running 'convert -version' and confirming the version is 7.1.2-26 or higher
- 6. Test your image processing workflows that involve JP2 (JPEG 2000) files to ensure functionality is maintained
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-55597 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-55597 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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