CVE-2026-66276

CVE-2026-66276: Apache Qpid Proton-J: Unbounded disposition range handling can lead to denial of service

Vendor Apache Software Foundation

Product Apache Qpid Proton-J

Weakness CWE-606

Published August 5, 2026

Last update August 6, 2026

View on NVD All CVEs

CVSS base score

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What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 5, 2026 CVE published

August 6, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-66276 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/606.html