PT-2026-67951 · Apache · Qpid-Proton

CVE-2026-66257

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Published

2026-08-05

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Updated

2026-08-07

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Apache Qpid Proton-J versions prior to 0.35.0
Description A pre-authentication attacker can cause resource exhaustion leading to a denial of service by leveraging unbounded symbol value caching.
Recommendations Upgrade to version 0.35.0.

Exploit

Fix

DoS

Allocation of Resources Without Limits

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Weakness Enumeration

Related Identifiers

CVE-2026-66257

Affected Products

Qpid-Proton