CVE-2026-67555
Received Received - Intake

Denial of Service in Apache Qpid Proton-Dotnet

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: Apache Software Foundation

Description
It was not possible to govern the maximum number of transfer frames per incoming delivery, enabling an authenticated attacker to cause excessive resource usage and 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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-67555
EUVD
EUVD-2026-53095

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
apache qpid_proton_dotnet to 1.1.0 (exc)
apache qpid_proton_dotnet 1.1.0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability in Apache Qpid Proton-Dotnet allows an authenticated attacker to send excessive transfer frames, consuming too many system resources and potentially causing a denial of service.

Detection Guidance

This vulnerability involves excessive resource usage due to uncontrolled transfer frames. To detect it, monitor network traffic for unusually high frame rates or resource consumption on systems running Apache Qpid Proton-Dotnet versions before 1.1.0. Check application logs for signs of denial of service or performance degradation.

Impact Analysis

An attacker could exploit this to degrade system performance or crash services by overwhelming resources. Upgrading to version 1.1.0 fixes the issue.

Compliance Impact

This vulnerability could lead to denial of service due to excessive resource usage, which may impact availability of systems handling sensitive data. Compliance with standards like GDPR or HIPAA often requires maintaining system availability and protecting data integrity, so such disruptions could pose risks to compliance.

Mitigation Strategies

Upgrade Apache Qpid Proton-Dotnet to version 1.1.0 or later to address the excessive resource usage issue.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-67555. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart