Resource exhaustion in Apache Qpid Proton Dotnet - CVE-2026-67555
Published: August 25, 2026
Vulnerability identifier: #VU145171
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-67555
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to improper resource management in incoming delivery transfer frame handling when processing an excessive number of transfer frames per incoming delivery. A remote user can send a large number of transfer frames in a delivery to cause a denial of service.
Affected software
Apache Qpid Proton Dotnet
How to mitigate CVE-2026-67555
Install security update from vendor's website.
Apache Qpid Proton Dotnet - update to 1.1.0