v6.2.19

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⚠️ Security Fixes

This maintenance release fixes a high number of CVEs. You can learn more about this in the "Spring and Security In The Times Of AI" blog post. Here is the full list of 16 CVEs:

• CVE-2026-41838 "Spring Framework Predictable Session ID in WebSocket Module"
• CVE-2026-41839 "Spring Framework Escalation via Session Fixation in WebFlux"
• CVE-2026-41840 "Spring Framework Denial of Service via Multipart Requests in WebFlux"
• CVE-2026-41841 "Spring Framework Information Disclosure via Static Resource Cache in Spring MVC and WebFlux"
• CVE-2026-41842 "Spring Framework Denial of Service via Versioned Resources in Spring MVC and WebFlux"
• CVE-2026-41843 "Spring Framework Path Traversal via Versioned Static Resources in Spring MVC and WebFlux"
• CVE-2026-41844 "Spring Framework Open Redirect in Spring MVC and WebFlux"
• CVE-2026-41845 "Spring Framework Cross-site Scripting via JavaScriptUtils"
• CVE-2026-41846 "Spring Framework Cross-site Scripting via JSP Form Tags"
• CVE-2026-41848 "Spring Framework Denial of Service via AntPathMatcher"
• CVE-2026-41850 "Spring Framework Algorithmic Denial of Service via SpEL Expressions"
• CVE-2026-41851 "Spring Framework Denial of Service via Unbounded Cache in SpEL"
• CVE-2026-41852 "Spring Framework Arbitrary Method Invocation in SpEL Expressions"
• CVE-2026-41853 "Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux"
• CVE-2026-41854 "Spring Framework Server-Side Request Forgery via UriComponentsBuilder"
• CVE-2026-41855 "Spring Framework Unsafe Deserialization via Jackson JMS Converters"

⭐ New Features

• Avoid too many character access attempts in AntPathMatcher #​36886
• Track operations during SpEL expression evaluation #​36887
• Ensure getters have non-void return types in SpEL #​36888
• Expose ClassLoader from DefaultDeserializer #​36839
• Refine default view name resolution #​36794
• Refine Jackson JMS converters #​36792
• Improve ABNF rule checks in RfcUriParser #​36788
• Detect custom deserialized NullValue instances in AbstractValueAdaptingCache #​36728
• Warn against unsafe static resource locations in MVC and WebFlux #​36693
• Consistent compatibility with Woodstox as an alternative to Xerces #​36683

🐞 Bug Fixes

• Data is lost for joined DataBuffer in DataBufferUtils #​36874
• CronExpression skips days on midnight DST gap #​36873
• Concurrency issue against shared cookie field in CookieLocaleResolver#setLocaleContext #​36870
• Server Sent Event does not support multi-line comments #​36867
• Regression in 6.2.0+: ConfigurationClassParser incorrectly removes component-scanned bean when the same class is also registered under a different name via XML #​36849
• Bean Background Bootstrap and Lazy Init #​36847
• Fix JSP tag processing #​36798
• Fix script processing capabilities #​36796
• Parsing failure for MIME type with quoted parameter values #​36734
• Circular dependency between supplier-created beans is silently ignored on startup #​36732
• Non-deterministic "Body token not expected" in org.springframework.http.codec.multipart.PartGenerator #​36722
• Regression on value class parameter handling #​36720
• Cache collisions in CachingResourceResolver #​36718
• Unexpected path element removal when resolving versioned resources #​36699

📔 Documentation

• Fix broken links to Selenium documentation #​36877
• Fix applicability note on setAutoGrowCollectionLimit #​36864
• Javadoc of nestingLevel parameter in MethodParameter constructor is inconsistent with actual implementation #​36848

🔨 Dependency Upgrades

• Upgrade to JUnit 5.14.4 #​36707
• Upgrade to Micrometer 1.15.12 #​36881
• Upgrade to Reactor 2024.0.18 #​36882