CVE-2026-26983
Description
A flaw was found in ImageMagick, a software suite for editing and manipulating digital images. A remote attacker could exploit this vulnerability by providing a specially crafted image containing an invalid <map> element to the Magick Scripting Language (MSL) interpreter. This flaw causes a use-after-free, leading to an application crash and resulting in a Denial of Service (DoS).
Statement
MODERATE: This flaw in ImageMagick allows a use-after-free vulnerability when processing a specially crafted MSL <map> element. An attacker could provide a malicious image file, leading to a denial of service due to application crashes. This affects systems where ImageMagick is used to process untrusted image files.
Mitigation
To mitigate this issue, avoid processing untrusted or maliciously crafted image files with ImageMagick. If ImageMagick is used in a service, restrict access to trusted sources and ensure input validation is in place to prevent the processing of arbitrary or malformed MSL files.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.3 | N/A | 5.3 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | Low | N/A | Low |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory
If the expired pointer is used in a read operation, an attacker might be able to control data read in by the application.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
If the expired pointer references a memory location that is not accessible to the product, or points to a location that is "malformed" (such as NULL) or larger than expected by a read or write operation, then a crash may occur.
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
If the expired pointer is used in a function call, or points to unexpected data in a write operation, then code execution may be possible.
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