High · 7.5 CVE-2026-67551 EUVD-2026-53057GHSA-vgxj-mxxf-j384

Apache Qpid Proton Dotnet: Type size/count handling can lead to excessive allocation pre-authentication

Published Aug 5, 2026 · Updated Aug 6, 2026 · Assigned by apache

Description

pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.

This issue affects Apache Qpid Proton-Dotnet: through 1.0.0.

Users are recommended to upgrade to version 1.1.0, which fixes the issue.

Vendor	Product	Affected	Fixed
Apache Software Foundation	Apache Qpid Proton Dotnet	≤ 1.0.0	—