PT-2026-67957 · Apache · Qpid Protonj2

CVE-2026-67588

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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 ProtonJ2 versions prior to 1.2.0
Description A pre-authentication attacker can cause resource exhaustion leading to a denial of service by leveraging unbounded symbol value caching. Symbol value caching is a mechanism used to store and reuse frequently occurring values to improve performance.
Recommendations Upgrade to version 1.2.0.

Exploit

Fix

DoS

Allocation of Resources Without Limits

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Weakness Enumeration

Related Identifiers

CVE-2026-67588

Affected Products

Qpid Protonj2