CVE-2026-66273

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CVSS 3.1

7.5 high

EPSS

<1%p36

Published

Aug 5, 2026 (Aug 5, 2026)

Modified

Aug 7, 2026

Description

A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential 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.

Vendors: apache
Products: qpid proton-j
Weakness: CWE-789
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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