CVE-2026-40994: Wss4jSecurityInterceptor initialized its BSP (WS-I Basic Security Profile) compliance flag so that inbound val

Routine

HIGH 8.2REMOTEUPGRADE

CVE-2026-40994 is a high-severity flaw (CVSS 8.2) affecting spring web services. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-1188
Published	2026-06-11
Last modified	2026-09-04

Publisher (CNA): VMware · Vendor: broadcom

Last updated 2026-09-04 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-11 07:16 UTCPublished CVE record published
2026-09-04 17:11 UTCUpdated Record last modified

broadcom spring web services UPGRADE

Affected: < 3.1.9 · >= 4.0.0 and < 4.0.19 · >= 4.1.0 and < 4.1.3.1 · >= 5.0.0 and < 5.0.1.1

Fixed in: 3.1.9, 4.0.19, 4.1.3.1, 5.0.1.1

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy spring-web-services || rpm -q spring-web-services || spring-web-services --version

2. UPGRADE to 3.1.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade spring-web-services

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade spring-web-services

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison spring-web-services sudo apt install spring-web-services=<VERSION_BEFORE_4.0.0> sudo apt-mark hold spring-web-services

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list spring-web-services sudo dnf downgrade spring-web-services-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add spring-web-services

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-40994?

spring web services: upgrade to 3.1.9, 4.0.19, 4.1.3.1, 5.0.1.1. Exact commands for each OS are on this page.

Is CVE-2026-40994 being exploited?

CVE-2026-40994 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-40994 affect?

CVE-2026-40994 affects spring web services. Severity is high (CVSS 8.2). 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 me

How urgent is CVE-2026-40994?

Priority 37/100. High severity; Remotely exploitable, no login, no user action

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References

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