CVE-2026-85532 Apache WSS4J - Weak Cryptography & Denial of Service

Apache WSS4J contains a cryptographic weakness caused by accepting attacker-controlled derived-key lengths and offsets without adequate bounds, letting attackers cause weak keys or resource exhaustion, exploit requires crafted WS-Security messages.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.55% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Weak Cryptography
Impact
Denial Of Service, Weak Cryptography
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
30 September 2026
Updated
15 October 2026
Weakness
CWE-20

Vendor fix

Upgrade to versions 4.0.2, 3.0.6, or 2.4.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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