CVE-2026-40996CWE-327

CVE-2026-40996

Medium · published June 11, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
3.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00146 · 3.5th percentile
Weakness
CWE-327 · Use of a Broken or Risky Cryptographic Algorithm
Published
2026-06-11T11:16Z
Affected products (4)
ProductVersionsFixed in
broadcom/spring_web_services< 3.1.93.1.9
broadcom/spring_web_services≥ 4.0.0, < 4.0.194.0.19
broadcom/spring_web_services≥ 4.1.0, < 4.1.3.14.1.3.1
broadcom/spring_web_services≥ 5.0.0, < 5.0.1.15.0.1.1
References (1)
https://spring.io/security/cve-2026-40996 · [email protected]
EPSS history
Timeline
  • 11 JUN 05:04Z
    Inbound WS-Security allows RSA PKCS#1 v1.5 key transport by default
    cvelistv5