Apache WSS4J: Insufficient Validation of Derived-Key Parameters
Published Sep 30, 2026
7.5
HIGHCVSS 3.1
EPSS 0.36%
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.
Affected products
-
- Version 0StatusaffectedConstraints<2.4.4
- Version 3.0.0StatusaffectedConstraints<3.0.6
- Version 4.0.0StatusaffectedConstraints<4.0.2
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache WSS4J | unaffected |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Sep 30, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.36% (0.00356) | 27.03th | v5 (v2026.06.15) |
| Oct 1, 2026 | 0.49% (0.00488) | 39.70th | v5 (v2026.06.15) |
References (2)
- http://www.openwall.com/lists/oss-security/2026/09/30/8 Mailing ListThird Party Advisory
- https://lists.apache.org/thread.html/7jllcpbf4nbzhdp2vchz5yplnl5w6vd6 vendor-advisoryMailing ListVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/09/30/8 | Mailing ListThird Party Advisory | |
| https://lists.apache.org/thread.html/7jllcpbf4nbzhdp2vchz5yplnl5w6vd6 | vendor-advisoryMailing ListVendor Advisory |
Change history (0)
No recorded changes yet.