CVE-2026-20652

webkitgtk: A remote attacker may be able to cause a denial-of-service

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · March 18, 2026

Updated · June 28, 2026

Description

A flaw was found in WebKitGTK. A remote attacker may be able to cause a denial-of-service due to improper memory handling.

Statement

This issue allows a remote attacker to cause a denial of service. Due to this reason, this flaw has been rated with an important severity.

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

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')