CVE-2026-67555: medium-severity vulnerability in Apache Qpid Proton Dotnet
Apache Qpid Proton Dotnet: Unable to govern the maximum number of transfer frames per incoming delivery
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.7%
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Apache Software Foundation · Apache Qpid Proton DotnetRelated CVEs — Apache Qpid Proton Dotnet
In the same product, most dangerous first.
CVE-2026-67552HIGHApache Qpid Proton Dotnet: Unbounded type nesting can lead to pre-authentication stackoverflowEPSS 0.8%CVE-2026-67551HIGHApache Qpid Proton Dotnet: Type size/count handling can lead to excessive allocation pre-authenticationEPSS 0.8%CVE-2026-67465HIGHApache Qpid Proton Dotnet: Unbounded symbol value caching can lead to pre-authentication resource exhaustionEPSS 0.8%CVE-2026-67554MEDIUMApache Qpid Proton Dotnet: Unbounded disposition range handling can lead to denial of serviceEPSS 0.7%CVE-2026-67553MEDIUMApache Qpid Proton Dotnet: Incoming session flow control window can be exceededEPSS 0.7%