7.5

CVE-2026-85532: apache software foundation apache wss4j Improper Input Validation

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-85532DEBIAN-CVE-2026-85532
Published 30-09-2026Last modified 30-09-2026
Open JSON

Vulnerability summary

CVE-2026-85532 is a high (CVSS 7.5) Improper Input Validation vulnerability in apache software foundation apache wss4j. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.55%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-09-2026
    PublishedVulnerability first disclosed.
  2. 30-09-2026
    Last modifiedVulnerability information updated.

Description

Apache WSS4J accepted attacker-controlled derived-key lengths and offsets without adequate bounds. This could permit cryptographically weak keys or excessive CPU and memory consumption when processing crafted WS-Security messages. The fixes enforce a minimum key length of 16 bytes, a maximum length of 512 bytes, and a maximum offset of 4096 bytes. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.55%

Chance of exploitation in the next 30 days

Percentile

45%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

01-10-202618-10-2026
EPSS score
0.55%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • wss4j< 2.4.4 | ≥ 3.0.0, < 3.0.6 | ≥ 4.0.0, < 4.0.2
Apache software foundation1 product
  • apache wss4j≥ 4.0.0, < 4.0.2 | ≥ 3.0.0, < 3.0.6 | < 2.4.4
Debian1 product
  • wss4jAll versions (No fix recorded)
Ubuntu1 product
  • wss4jAll versions (No fix recorded)

4 vendors · 4 products

References

5 links