Unrated severityNVD Advisory· Published Aug 5, 2026· Updated Aug 5, 2026
Apache Qpid Proton-J: Unbounded disposition range handling can lead to denial of service
CVE-2026-66276
Description
An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service.
This issue affects Apache Qpid Proton-J: through 0.34.1.
Users are recommended to upgrade to version 0.35.0, which fixes the issue.
Affected products
1- Range: <=0.34.1
Patches
Vulnerability mechanics
References
1- lists.apache.org/thread/14nj0lpsqpnd3q0hw0t0tw44qvdo1jc2mitrevendor-advisory
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