HeroDevs
Visit NES for Spring Home Page

Spring Security 6.4.x Release Notes

4 versions

Comprehensive release notes and changelog for Spring Security 6.4.x, including security patches, bug fixes, and feature updates across all supported versions.

Jun 15, 2026
Latest: 6.4.17
75 Patched Vulnerabilities
VEX Statements

June 2026

6.4.17

Released Jun 15, 2026
CVE-2026-40988
CVE-2026-41003
CVE-2026-41694
CVE-2026-41706
CVE-2026-47838
Full Version: 
6.4.13-spring-security-6.4.17

Bug Fixes

  • Capped the inflated size of compressed SAML 2.0 REDIRECT-binding payloads in Saml2Utils, preventing an unauthenticated attacker from exhausting server memory (CVE-2026-40988).
  • Hardened the SAML 2.0 filters to route generated HTML forms through FormPostRedirectStrategy, preventing arbitrary code execution via attacker-influenced RelyingPartyRegistration values (CVE-2026-41003).
  • Reworked SAML login and logout validation so signature validation gates decryption, closing a decryption-oracle weakness in the OpenSAML authentication and logout providers (CVE-2026-41694).
  • Fixed an open-redirect vulnerability in CookieRequestCache and CookieServerRequestCache, which stored and used an unvalidated absolute redirect URL; saved requests now favor relative URIs (CVE-2026-41706).
  • Tightened Subject DN parsing in the deprecated SubjectDnX509PrincipalExtractor, preventing a crafted X.509 client certificate from authenticating as another user (CVE-2026-47838).

Dependency Upgrades

  • Spring Data BOM (NES) 2024.1.13-spring-data-bom-2024.1.17
  • Spring LDAP (NES) 3.2.16-spring-ldap-3.2.21

April 2026

6.4.16

Released Apr 23, 2026
CVE-2026-22746
CVE-2026-22748
CVE-2026-22751
Full Version: 
6.4.13-spring-security-6.4.16

Bug Fixes

  • Patched the authorization bypass in DaoAuthenticationProvider where timing attack protections could be circumvented for disabled, expired, or locked accounts when applications rely on UserDetails#isEnabled, #isAccountNonExpired, or #isAccountNonLocked (CVE-2026-22746).
  • Patched the weak authentication issue in NimbusJwtDecoder and NimbusReactiveJwtDecoder where JWT token validation is not enforced unless an OAuth2TokenValidator<Jwt> is explicitly configured via setJwtValidator() (CVE-2026-22748).
  • Patched the authorization bypass in JdbcOneTimeTokenService where a time-of-check time-of-use race condition allowed concurrent one-time token login requests to bypass the single-use constraint (CVE-2026-22751).

Dependency Upgrades

  • Spring Data BOM (NES) 2024.1.13-spring-data-bom-2024.1.16
  • Spring LDAP (NES) 3.2.16-spring-ldap-3.2.20

March 2026

6.4.15

Released Mar 23, 2026
CVE-2026-22732
Full Version: 
6.4.13-spring-security-6.4.15

Bug Fixes

  • Patched the critical Spring Security vulnerability in OnCommittedResponseWrapper where security headers are silently dropped when Content-Length is set via setHeader, setIntHeader, or addIntHeader (CVE-2026-22732).

Dependency Upgrades

  • Spring Framework 6.2.17
  • Spring Data BOM (NES) 2024.1.13-spring-data-bom-2024.1.14
  • Spring LDAP (NES) 3.2.16-spring-ldap-3.2.18

January 2026

6.4.14

Released Jan 28, 2026
Full Version: 
6.4.13-spring-security-6.4.14

Notes

  • This release originates from the open‑source Spring Security repository forked by HeroDevs. It encompasses modifications implemented by HeroDevs to ensure successful framework builds. This release contains no functional changes from Spring Security 6.4.13.

Stay in the loop

~/herodevs-spring-framework-support

Open Source Support

When official support ends, we're just getting started.