CVE-2026-66276

MEDIUM

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

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-66276 has a selected CVSS score of 6.5 (medium).

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 6, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Apache Qpid Proton-J

Browse Apache Software Foundation / Apache Qpid Proton-Jorg.apache.qpid:proton-j

Default status: unaffected

CVE ListThrough 0.34.1affected

References

3