Memory Allocation with Excessive Size Value Affecting apache.qpid.proton package, versions [,1.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Sept 2026
- disclosed5 Aug 2026
- creditUnknown
Introduced: 5 Aug 2026
CVE-2026-67551 (opens in a new tab)How to fix?
Upgrade Apache.Qpid.Proton to version 1.1.0 or higher.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value through improper handling of type size and count during the pre-authentication phase. An attacker can exhaust system resources by sending specially crafted requests that trigger excessive memory allocation.