CVE-2026-25637
Description
A flaw was found in ImageMagick. A remote attacker can exploit a memory leak in the ASHLAR image writer by providing a specially crafted image. This vulnerability causes small objects to be allocated but never freed, leading to the exhaustion of process memory and a Denial of Service (DoS).
Statement
The impact of this flaw is MODERATE. A memory leak in the ASHLAR image writer component of ImageMagick can be triggered by processing a specially crafted image. This could lead to resource exhaustion and denial of service. This affects Red Hat Enterprise Linux 6 ELS and 7 ELS.
Mitigation
To mitigate this issue, restrict ImageMagick's processing of untrusted or unverified image files. Where possible, process images from unverified sources within a sandboxed environment to contain potential resource exhaustion. Additionally, ensure that applications utilizing ImageMagick implement robust input validation for all image inputs.
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)
Availability
Technical Impact: DoS: Resource Consumption (Other); DoS: Resource Consumption (Memory); DoS: Resource Consumption (CPU)
An attacker that can influence the allocation of resources that are not properly released could deplete the available resource pool and prevent all other processes from accessing the same type of resource. Frequently-affected resources include memory, CPU, disk space, power or battery, etc.
Frequently Asked Questions
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