CVE-2026-25796
Description
A flaw was found in ImageMagick, an open-source software for image manipulation. This vulnerability is a memory leak that occurs when processing certain image objects. An attacker can exploit this flaw to repeatedly trigger the memory leak, which can lead to a Denial of Service (DoS) by consuming excessive system memory and making the application unavailable.
Statement
This MODERATE impact vulnerability in ImageMagick involves a memory leak when processing certain image files due to unfreed objects in the ReadSTEGANOImage() function. This flaw can lead to a denial of service by exhausting system memory. Red Hat Enterprise Linux and community projects utilizing ImageMagick are affected.
Mitigation
To mitigate this issue, avoid processing untrusted or maliciously crafted image files with ImageMagick. If ImageMagick is used in a server-side application or service that handles external input, consider implementing resource limits for the ImageMagick process to prevent excessive memory consumption, or run the process within a sandboxed environment to contain potential denial of service attacks.
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 | 7.5 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | Low | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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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