CVE-2026-66276mediumCWE-606

CVE-2026-66276: medium-severity vulnerability in Apache Qpid Proton-J

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

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.7%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Apache Software Foundation · Apache Qpid Proton-J
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