CVE-2026-41003: Unencoded HTML Outputs in Spring Security May Allow Cross-Site Scripting

Published Jun 9, 2026
·
Updated

An attacker able to influence values in RelyingPartyRegistration may be able to run arbitrary code on HTML forms generated by Spring Security filters.

Affected versions: Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.

Affected Software

7 affected components
VMware Spring Security>=5.7.0<=5.7.23, >=5.8.0<=5.8.25, >=6.3.0<=6.3.16, >=6.4.0<=6.4.16, >=6.5.0<=6.5.10, >=7.0.0<=7.0.5
VMware Spring Security>=5.7.0<5.7.24
VMware Spring Security>=5.8.0<5.8.26
VMware Spring Security>=6.3.0<6.3.17
VMware Spring Security>=6.4.0<6.4.17
VMware Spring Security>=6.5.0<6.5.10.2
VMware Spring Security>=7.0.0<7.0.5.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Spring Security to a version that resolves this vulnerability.

    Fixed in 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5

Event History

Jun 9, 2026
CVE Published
via MITRE·11:46 PM
Data Sourced
via MITRE·11:46 PM
DescriptionSeverityWeakness
Jun 10, 2026
Data Sourced
via NVD·12:16 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-41003?

CVE-2026-41003 has a severity rating of 7.6, categorized as high.

2

How do I fix CVE-2026-41003?

To remediate CVE-2026-41003, upgrade to Spring Security version 5.7.24 or later, 5.8.26 or later, 6.3.17 or later, 6.4.17 or later, 6.5.11 or later, or 7.0.0 or later.

3

What type of vulnerability is CVE-2026-41003?

CVE-2026-41003 is a Cross-Site Scripting (XSS) vulnerability.

4

Who is affected by CVE-2026-41003?

CVE-2026-41003 affects users of VMware Spring Security versions 5.7.0 through 5.7.23, 5.8.0 through 5.8.25, and several other versions listed in the description.

5

What can an attacker do with CVE-2026-41003?

An attacker may exploit CVE-2026-41003 to run arbitrary code on HTML forms generated by Spring Security filters.

Company

Resources

Contact

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CVE-2026-41003 - Unencoded HTML Outputs in Spring Security May Allow Cross-Site Scripting - SecAlerts