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CVE Record

CVE-2026-26983: ImageMagick: Invalid MSL <map> can result in a use after free

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, the MSL interpreter crashes when processing a invalid `<map>` element that causes it to use an image after it has been freed. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

MediumCVSS 5.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

ImageMagick can crash when its MSL image scripting feature processes a malformed <map> element. For businesses, the main known impact is service disruption if ImageMagick is exposed through image-processing workflows. The advisory states patched versions are 7.1.2-15 and 6.9.13-40.

Executive priority

Treat as a normal-priority availability fix for systems processing untrusted content. Prioritize internet-facing upload, conversion, and media-processing services first. There is no cited evidence of active exploitation.

Technical view

Prior to ImageMagick 7.1.2-15 and 6.9.13-40, the MSL interpreter may use an image object after it has been freed while handling an invalid <map> element. The CVSS 3.1 score is 5.3, with network attack vector and low availability impact. No confidentiality or integrity impact is indicated.

Likely exposure

Systems that accept or process untrusted image or MSL content using vulnerable ImageMagick versions are the primary concern. Exposure is lower where ImageMagick is not reachable from user-controlled input or MSL processing is not used.

Exploitation context

The provided sources do not report active exploitation, and the CVE is not marked in KEV. The documented outcome is a crash, indicating denial-of-service risk rather than confirmed code execution.

Researcher notes

The source bundle describes a use-after-free in MSL <map> handling, while listing CWE-476. Rely on the ImageMagick advisory for root-cause specifics. Evidence supports crash/availability impact only; do not assume broader impact without vendor confirmation.

Mitigation direction

  • Upgrade ImageMagick 7.x to 7.1.2-15 or later.
  • Upgrade ImageMagick 6.x to 6.9.13-40 or later.
  • Review vendor advisory for any environment-specific guidance.
  • Restrict untrusted file processing where immediate upgrade is not possible.

Validation and detection

  • Inventory hosts, containers, and applications using ImageMagick.
  • Confirm installed ImageMagick versions are not in affected ranges.
  • Identify services accepting user-supplied images or MSL input.
  • Verify patch deployment in production and build images.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-476: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-26983 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2026-26983Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ImageMagickImageMagick>= 7.0.0, < 7.1.2-15, < 6.9.13-40Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-476 · source CWE mapping

NULL Pointer Dereference

NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.