CVE-2026-40997

SOAP security faults leak Spring Security account state

MEDIUM

5.3

CVSS Score

Published: June 11, 2026 at 05:04 AM UTC

Updated: September 4, 2026 at 05:16 PM UTC

2 products affected across 2 vendorsSpring Web ServicesSpring Web Services

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Severity

MEDIUM5.3

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

Several Spring WS integration paths with Spring Security could surface detailed account state (for example locked or disabled user semantics) to remote SOAP clients through exception messages or callback outcomes, instead of failing with generic authentication errors. That behavior assists remote attackers in distinguishing valid accounts from invalid ones and inferring lifecycle state. 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Spring Web Services · Broadcom

95%

v < 3.1.94.0.0 ≤ v < 4.0.194.1.0 ≤ v < 4.1.3.15.0.0 ≤ v < 5.0.1.1

Affected range stops below 3.1.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.19, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.1.3.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.0.1.1, so it looks safe — our inference, not a vendor statement

Spring Web Services · Spring

60%

3.1.0 ≤ v < 3.1.94.0.0 ≤ v < 4.0.194.1.0 ≤ v < 4.1.3.15.0.0 ≤ v < 5.0.1.13.1.0 4.0.0 4.1.0 5.0.0

Affected range stops below 3.1.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.19, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.1.3.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.0.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://spring.io/security/cve-2026-40997

References (1)

Vendor Advisory

Source: cverecord

https://spring.io/security/cve-2026-40997

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMvmware

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusUNDERGOING ANALYSIS

CWE

CWE-209

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