Spring Framework Files

:warning: 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"

:star: New Features

• Improve path pattern matching #36886
• Eagerly compute exit descriptors for negative literals #36887
• 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

:lady_beetle: 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

:notebook_with_decorative_cover: 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

:hammer: Dependency Upgrades

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