CVE-2026-67555

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

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.7% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-25)

CWE

CWE-770

Published

2026-08-05

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• apache:qpid_proton-dotnet

References

• https://lists.apache.org/thread/dwrb02dp714lvlfxdj4o5bc9h3z54sw3
• http://www.openwall.com/lists/oss-security/2026/08/04/26

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