CVE-2026-55628
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. In versions prior to 7.1.2-26he, the `-concatenate` operation is missing policy checks, potentially resulting in both reading and writing to paths disallowed by the security policy. This issue has been fixed in version 7.1.2-26.
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 · high confidenceThe `-concatenate` operation in versions prior to 7.1.2-26he lacks policy enforcement checks, allowing attackers to bypass security policies and read from or write to filesystem paths that should be restricted - effectively a policy bypass/path traversal vulnerability.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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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Identify product and versionLocate the application or tool that provides the `-concatenate` operation and retrieve its installed version number. Use the system's package manager, application --version flag, or check the binary/library metadata.Affected if The version is prior to 7.1.2-26he (for example, 7.1.2-20 or any 7.1.x version below 7.1.2-26he).
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Confirm `-concatenate` is availableRun the command or API call that invokes the `-concatenate` operation to verify the feature exists in the installed version.Affected if The `-concatenate` operation is present and callable in the environment.
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Check for untrusted input handlingInspect any scripts, workflows, or configurations that invoke `-concatenate` with user-supplied or external file paths as arguments.Affected if The operation processes paths from untrusted sources without prior validation.
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Review policy enforcement configurationExamine the product's security policy files, access control settings, or sandbox configuration to verify whether policy enforcement is explicitly enabled for the `-concatenate` operation.Affected if Policy enforcement checks are absent, disabled, or not applied to the `-concatenate` operation.
You are affected if the installed version is prior to 7.1.2-26he AND the `-concatenate` operation processes untrusted filesystem paths without enforced security policies.
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.
From vendor dataUpgrade to version 7.1.2-26 or later which contains the patched `-concatenate` operation with proper policy checks.
- Consultation4.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-55628 — 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-2026-55628 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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