CVE-2026-67591: qpid protonj2 before 1.2.0 (exclusive); +1 more affected products

CVE-2026-67591. CVSS 3.1 base score 6.5 (MEDIUM, Source advisory). EPSS 0.00653 (percentile 0.50637), scored 22-Oct-2026.

Affected technology

qpid protonj2 · before 1.2.0 (exclusive)
apache

Apache Qpid ProtonJ2 · 0 through 1.1.0
Apache Software Foundation

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service. Source advisory’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality and integrity impact as none; availability impact as high.

Published 24-Oct-2026 01:44 UTC

CWE: CWE-770
CCR priority: 26.2 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · Source advisory
EPSS: 0.00653 · percentile 0.50637 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-67591.html