CVE-2026-67551
published 2026-08-05CVE-2026-67551: pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects…
PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.49%
40.6th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | qpid_proton-dotnet | < 1.1.0 | 1.1.0 |
| apache_software_foundation | apache_qpid_proton_dotnet | <= 1.0.0 | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_redhat7.5HIGH
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Red Hat
Apache Qpid Proton-Dotnet: Apache Qpid Proton Dotnet: Denial of Service via excessive memory allocation
vendor_redhat·2026-08-05·CVSS 7.5
CVE-2026-67551 [HIGH] CWE-770 Apache Qpid Proton-Dotnet: Apache Qpid Proton Dotnet: Denial of Service via excessive memory allocation
Apache Qpid Proton-Dotnet: Apache Qpid Proton Dotnet: Denial of Service via excessive memory allocation
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.
A flaw was found in Apache Qpid Proton Dotnet. A remote, unauthenticated attacker could exploit a vulnerability in the handling of type sizes and counts. This could lead to excessive memory allocation, resulting in a denial of service (DoS) for the affected system.
Package: qpid-proton-dotnet (Red Hat AMQ Clients) - Affected
GHSA
pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.
ghsa_unreviewed·2026-08-05
CVE-2026-67551 CWE-789 pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.
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.
No detection rules found.
No public exploits indexed.
2026-08-05
Published