CVE-2026-27798
ImageMagick: ImageMagick: Information disclosure via heap buffer over-read when processing images
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 26, 2026
Updated · August 18, 2026
Description
A flaw was found in ImageMagick. A local user could exploit a heap buffer over-read vulnerability by processing a specially crafted image with small dimensions using the -wavelet-denoise operator. This vulnerability may lead to the disclosure of sensitive information.
Statement
This MODERATE impact vulnerability in ImageMagick affects Red Hat Enterprise Linux. A heap buffer over-read can occur when processing images with small dimensions using the -wavelet-denoise operator. This flaw could lead to information disclosure or denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
To reduce exposure, avoid processing untrusted or maliciously crafted images with ImageMagick. If processing untrusted content is necessary, consider executing ImageMagick operations within a sandboxed environment to contain potential risks.
CVSS / CWE
CVSS 3.1 · 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 · Out-of-bounds Read