P4Verified

CVE-2026-87830: wss4j before 2.4.4 (exclusive), from 3.0.0 (inclusive), before 3.0.6 (exclusive), from 4.0.0 (inclusive), before 4.0.2…

CVE-2026-87830. CVSS 3.1 base score 9.1 (CRITICAL, Source advisory). EPSS 0.00184 (percentile 0.0724), scored 2026-10-05.

Affected technology

wss4j · before 2.4.4 (exclusive)
apache

wss4j · from 3.0.0 (inclusive), before 3.0.6 (exclusive)
apache

wss4j · from 4.0.0 (inclusive), before 4.0.2 (exclusive)
apache

Apache WSS4J · 4.0.0 to before 4.0.2, 3.0.0 to before 3.0.6, 0 to before 2.4.4
Apache Software Foundation

Component: Not specified by the source

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

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.1/10) rates confidentiality and integrity impact as high; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 2026-10-06 17:56:29.727784+00:00

CWE: CWE-917
CCR priority: 36.4 /100 (P4)
CVSS 3.1: 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · Source advisory
EPSS: 0.00184 · percentile 0.0724 · 2026-10-05
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-06 17:55:17.257073+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-87830.html