Spring Security Advisories

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Unencoded HTML Outputs in Spring Security May Allow Cross-Site Scripting

HIGH | JUNE 09, 2026 | CVE-2026-41003

Description

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

Affected Spring Products and Versions

Spring Security:

  • 7.0.0 - 7.0.5
  • 6.5.0 - 6.5.10
  • 6.4.0 - 6.4.16
  • 6.3.0 - 6.3.16
  • 5.8.0 - 5.8.25
  • 5.7.23 and earlier

Mitigation

Users of affected versions should upgrade to the corresponding fixed version.
Fix versionAvailability
7.0.6OSS
7.0.5.1Enterprise Support Only
6.5.11OSS
6.5.10.2Enterprise Support Only
6.4.17Enterprise Support Only
6.3.17Enterprise Support Only
5.8.26Enterprise Support Only
5.7.24Enterprise Support Only

No further mitigation steps are necessary.

References

History

  • 2026-06-09: Initial vulnerability report published.

Reporting a vulnerability

To report a security vulnerability for a project within the Spring portfolio, see the Security Policy

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