CVE-2026-40994
Wss4jSecurityInterceptor disables WS-I BSP validation by default
No known exploitation. EPSS puts it in the 14th percentile. Fixed versions are out.
No public exploit knownFix2 products4 fixed builds listed below
No ready-made check. Neither Nuclei nor OpenVAS has one for this CVE yet.
What to do
Find your product and version, then upgrade to the build on the right.
- Spring Web ServicesAffected: ≥ 5.0.0, < 5.0.1.1Upgrade to: 5.0.1.1Affected: ≥ 4.1.0, < 4.1.3.1Upgrade to: 4.1.3.1Affected: ≥ 4.0.0, < 4.0.19Upgrade to: 4.0.19Affected: ≥ 3.1.0, < 3.1.9Upgrade to: 3.1.9Stated by: CVE record
- Broadcom Spring Web ServicesAffected: < 3.1.9Upgrade to: 3.1.9Stated by: NVD
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
Wss4jSecurityInterceptor initialized its BSP (WS-I Basic Security Profile) compliance flag so that inbound validation disabled WSS4J BSP enforcement on RequestData. Services that validate WS-Security on the network could therefore accept messages that violate BSP rules, weakening protocol-level checks. Affected versions: Spring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 14th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 85 days, from the signal feeds we watch.
- Patch availablerecord updated
- Record updated
- Record updated
- Publishedweakness classified
Affected products
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Scored 8.2 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality LowSome restricted information is disclosed, but limited in scope
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability NoneNo availability impact
Weaknesses
Sources
References in the record
In the news
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