CVE-2026-67551
Apache Qpid Proton Dotnet: Type size/count handling can lead to excessive allocation pre-authentication
- State
- Published
- Severity
- 7.5 High
- Published
- Aug 5, 2026
- Updated
- Aug 6, 2026
- Reserved
- Jul 29, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-789 Memory Allocation with Excessive Size Value
Affected Products
| Product | Versions |
|---|---|
Apache Qpid Proton DotnetApache Software Foundation |
|
References
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