Answer in brief
CVE-2026-40996 records a Medium severity (CVSS 4.8) vulnerability in Inbound WS-Security allows RSA PKCS#1 v1.5 key transport by default. The current sources do not mark it as known exploited. The current feed maps Spring/Spring Web Services (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Spring/Spring Web Services (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Spring/Spring Web Servicesgeneric | >=5.0.0 <5.0.1.1 || >=4.1.0 <4.1.3.1 || >=4.0.0 <4.0.19 || >=3.1.0 <3.1.9 | 5.0.1.1, 4.1.3.1, 4.0.19, 3.1.9 |
Published upstream
Jun 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 23, 2026
Wss4jSecurityInterceptor defaulted allowRSA15KeyTransportAlgorithm to true, overriding Apache WSS4J's safer default for validation RequestData. Inbound WS-Security decryption could therefore accept RSA PKCS#1 v1.5 (rsa-1_5) encrypted key material unless operators explicitly reconfigured the flag. 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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-40996 records a Medium severity (CVSS 4.8) vulnerability in Inbound WS-Security allows RSA PKCS#1 v1.5 key transport by default. The current sources do not mark it as known exploited. The current feed maps Spring/Spring Web Services (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Spring/Spring Web Services (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Spring/Spring Web Servicesgeneric | >=5.0.0 <5.0.1.1 || >=4.1.0 <4.1.3.1 || >=4.0.0 <4.0.19 || >=3.1.0 <3.1.9 | 5.0.1.1, 4.1.3.1, 4.0.19, 3.1.9 |
Published upstream
Jun 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 23, 2026
Wss4jSecurityInterceptor defaulted allowRSA15KeyTransportAlgorithm to true, overriding Apache WSS4J's safer default for validation RequestData. Inbound WS-Security decryption could therefore accept RSA PKCS#1 v1.5 (rsa-1_5) encrypted key material unless operators explicitly reconfigured the flag. 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.
Quoted source text, attributed separately from HOL analysis.