CVE-2026-0960

A flaw was found in Wireshark. A local user could be affected by a denial of service when opening a specially crafted capture file containing HTTP3 protocol traffic. This vulnerability is caused by an infinite loop within the HTTP3 protocol dissector, leading to the application becoming unresponsive.

This vulnerability is rated Moderate for Red Hat Enterprise Linux and Red Hat In-Vehicle OS. The flaw in the Wireshark HTTP3 protocol dissector can lead to a denial of service when processing a specially crafted HTTP3 packet. This affects systems where Wireshark is used to analyze network traffic, potentially causing the application to become unresponsive.

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.

Users should avoid opening untrusted or suspicious packet capture files with Wireshark. This vulnerability is triggered by processing specially crafted HTTP3 packet captures, which can lead to a denial of service.