Spring Tips: the Exposed ORM for Kotlin

Hi, Spring fans! In this installment we look at the Exposed Object Relational Mapper framework for Kotlin. Kotlin Java JDBC springboot...

Possible Broken Access Control in Spring Security With Direct Use of AuthenticatedVoter

In Spring Security, versions 5.7.x prior to 5.7.12, 5.8.x prior to 5.8.11, versions 6.0.x prior to 6.0.9, versions 6.1.x prior to 6.1.8, versions 6.2.x prior to 6.2.3, an application is possible vulnerable to broken access control when it directly uses the AuthenticatedVotervote passing a null...

Spring Boot Testjars founder Rob Winch

Hi, Spring fans! In this week's installment we talk Rob Winch, lead of Spring Security and founder of the exciting new project Spring Boot Testjars...

A Bootiful Podcast: Roni Dover on Digma AI

Hi, Spring fans! In this installment we talk to Digma AI founder Roni Dover...

Broken Access Control in Spring Security With Direct Use of isFullyAuthenticated

In Spring Security, versions 6.1.x prior to 6.1.7 and versions 6.2.x prior to 6.2.2, an application is vulnerable to broken access control when it directly uses the AuthenticationTrustResolver.isFullyAuthenticatedAuthentication method. Specifically, an application is vulnerable if: An application...

A Bootiful Podcast: Oracle Java Developer Advocate Nicolai Parlog on the latest and greatest in Java

Hi, Spring fans! In this installment, I talk to Oracle Java Developer Advocate Nicolai Parlog on the latest and greatest in Java...

A Bootiful Podcast: Trifork CTO Joris Kuipers

Hi, Spring fans! In this installment, Josh Long talks to longtime Spring community legend and Trifork CTO Joris Kuipers. Happy new year!...

A Bootiful Podcast: Cloud Native Whitney Lee

Hi, Spring fans! In this installment, I talk to legendary Cloud Native Whitney Lee about cloud infrastructure, that one trick every dev must know, her new operations-centric gameshow, and more. Happy holidays to y'all!...

This Week in Spring - December 12th, 2023

Hi, Spring fans! Welcome to a new installment of This Week in Spring! We've got a ton of stuff to get into, so let's dive right in! Laur Spilca and I look at how to ugprade a Spring Security 5.x application to Spring Security 6.x. Apache SkyWalking with Sheng Wu and Apache ShardingSphere with...

This Week in Spring - November 14th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's November 14th, and you know what that means? NINE MORE DAYS until Spring Boot 3.2 drops on the day of the US holiday of Thanksgiving, no less! Some key features include: virtual threads initial CRaC support more...

A Bootiful Podcast: Java Language Architect Brian Goetz

Hi, Spring fans! Are you using Java 21 in production already? No? you should listen to this episode. Yes? Then you should listen to this episode! This week, Josh Long talks to legendary Java Language Architect Brian Goetz @BrianGoetz recaping the latest-and-greatest and previewing Java.next...

This Week in Spring - May 2, 20223

Hi, Spring fans! Welcome to another installment of This Week in Spring! You realize it's already May, 2023? Time's flying, way too quickly! I just got back from Bangalore, India, where I spoke at the amazing Great International Developer Summit, one of the all time best shows ever, and now I'm...

A Bootiful Podcast: GraalVM advocate Alina Yurenko on a Bootiful Podcast

Liiiive from New York, it's a Bootiful Podcast! This week I @starbuxman talk to Developer Advocate for GraalVM at Oracle Labs, and legend, Alina Yurenko @alinayurenko...

JSONP enabled by default in MappingJackson2JsonView

Spring Framework, versions 5.0.x prior to 5.0.7, versions 4.3.x prior to 4.3.18, and older unsupported versions, allows web applications to enable cross-domain requests via JSONP JSON with Padding through AbstractJsonpResponseBodyAdvice for REST controllers, and MappingJackson2JsonView for browse...

RCE in PATCH requests in Spring Data REST

Malicious PATCH requests submitted to servers using Spring Data REST backed HTTP resources can use specially crafted JSON data to run arbitrary Java code...

Data Binding Expression Vulnerability in Spring Web Flow

This CVE addresses a second path to exploiting the same vulnerability as the one described under CVE-2017-4971 . Applications that do not change the value of the MvcViewFactoryCreator useSpringBinding property which is disabled by default i.e. set to “false” can be vulnerable to malicious EL...

A Bootiful Podcast: Data guru Gregory Green on RabbitMQ, Valkey, Gemfire, Data Flow, and more

Hi, Spring and data fans! Want a faster, smarter data stack? Tune into this episode with Gregory Green for a deep dive into GemFire, RabbitMQ Streams, Dataflow, and more. We cover real-time event processing, active-active consistency, full-text search, vector search, and how to build resilient,...

cve-2026-41719 - MEDIUM - Spring Data KeyValue - SpEL Injection vulnerability in SpelPropertyComparator

cve-2026-41719 - MEDIUM - Spring Data KeyValue - SpEL Injection vulnerability in SpelPropertyComparator...

This Week in Spring - June 9th, 2026

Hi Spring fans! Welcome to another installment of This Week in Spring! Tons of releases coming out today and this week! So make sure you're pulling in the latest posts, as often as possible! Spring LDAP 2026.06 Releases - Contains CVE Fix Spring Framework 7.0.8 and 6.2.19 Available Now Spring...

cve-2026-40988 - HIGH - Unbounded DEFLATE Inflation in SAML 2.0 Service Provider

cve-2026-40988 - HIGH - Unbounded DEFLATE Inflation in SAML 2.0 Service Provider...

cve-2026-41710 - MEDIUM - Cache Exhaustion in Stateful Retries leads to Denial of Service

cve-2026-41710 - MEDIUM - Cache Exhaustion in Stateful Retries leads to Denial of Service...

This Week in Spring - May 19th, 2026

Hi Spring fans! Welcome to another installment of This Week in Spring!, this one written from the back of a taxi racing to the local Frankfurt train station, where I'll take a train to Munich for the amazing Kotlin Conf 2026 edition, where I'll be part of the keynote and deliver a talk on the...

VectorStore FilterExpression Converter injection

In Spring AI, various FilterExpressionConverter implementations accept a filter expression object and translate them to specific vector store query languages. In several cases, keys and values are not properly escaped, leading to the ability to alter the query. Only applications that use...

ONNX model cache defaults to world-writable predictable /tmp directory

In Spring AI, having access to a shared environment can expose the ONNX model used by the application. Only applications that use TransformersEmbeddingModel and have the cache enabled, using the default location, are affected...

Unauthorized User Impersonation when Using X.509 Client Certificates

SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user...

Servlet Path Not Correctly Included in Path Matching of HttpSecurity#securityMatchers

If an application is using securityMatchersString and a PathPatternRequestMatcher.Builder bean to prepend a servlet path, matching requests to that filter chain may fail and its related security components will not be exercised as intended by the application. This can lead to the authentication,...

A Bootiful Podcast: Java developer advocate Ana-Maria Mihalceanu

I had a wonderful chat with Java Developer Advocate Ana-Maria Mihalceanu about Java Flight Recorder, Project Babylon, Project Panama, and so many other exciting things in the Java ecosystem...

Server-Side Request Forgery in BedrockProxyChatModel via Unvalidated Media URL Fetching

spring-ai-bedrock-converse contains a Server-Side Request Forgery SSRF vulnerability in BedrockProxyChatModel when processing multimodal messages that include user-supplied media URLs. Insufficient validation of those URLs allows an attacker to induce the server to issue HTTP requests to unintend...

Spring Cloud Config Profile Substitution Can Allow Unintended Access To Files And Enable SSRF Attacks

When substituting the profile parameter from a request made to the Spring Cloud Config Server configured to the native file system as a backend, it was possible to access files outside of the configured search directories. In addition, when using a source control backend, the profile parameter...

A Bootiful Podcast: Jonatan Ivanov on how to measure all the things with Micrometer

Hi, Spring fans! This week we catch up with the observably awesome Jonatan Ivanov on how to measure all the things with Micrometer...

A Bootiful Podcast: The legendary Bruce Eckel on language design, effects, abstraction, concurrency, and so much more

Hi, Spring fans! In this installment, I sit down with the legendary Bruce Eckel, who has probably forgotten more about programming languages than I will ever know, and whose book Thinking in Java helped launch me into a career...

New Home for Spring Integration AWS

The Spring Integration for AWS was always an independent Spring Integration extension project with its own plans and release cycles. The consumption of this single jar library has always added a complexity from the dependency management perspective. It depends not only on Spring Integration modul...

The state of HTTP clients in Spring

This is a new blog post in the Road to GA series, this time exploring the new capabilities of our HTTP clients. This is also a good time to reflect on the state of HTTP clients in Spring, so we will use this opportunity to explain an important announcement: we are officially deprecating...

HTTP Service Client Enhancements

In this 3rd blog post of the Road to GA series that’s highlighting major features within the Spring portfolio for the next major versions to be released in November we’ll have a look at new features for HTTP service clients, which are a collaborative effort across several Spring projects...

This Week in Spring - September 9th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! I am home, ensconced in my studio here in somewhat sunny San Francisco, California, relaxing and trying to catch up on stuff I missed. As always, there's a ton! So let's dive right into it. Some of the amazing features that...

Spring Expression Language property modification using Spring Cloud Gateway Server WebFlux

The following versions of Spring Cloud Gateway Server Webflux may be vulnerable to Spring Environment property modification. An application should be considered vulnerable when all the following are true:...

A Bootiful Podcast: Micrometer.io lead Tommy Ludwig on the latest-and-greatest in observability for the Spring developer

Hi, Spring fans! In this episode, I talk to Micrometer.io lead Tommy Ludwig on the latest-and-greatest in observability for the Spring developer...

This Week in Spring - June 17th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! We're in the middle of June already! And you know what that means? Warm weather, fun, and of course: the amazing SpringOne event in lovely Las Vegas, NV! The content catalog went live today! I'll be there doing, among other...

A Bootiful Podcast: Spring IO founder Sergi Almar on Spring IO 2025

Hi, Spring and Spring I/O fans! In this installment we have the privilege of chatting with friend of the community and legend Sergi Almar about the amazing Spring IO 2025, where this episode was published, and a lot more...

A Bootiful Podcast: Donald Raab on Eclipse Collections

Hi, Spring fans! In this edition, we talk to Eclipse Collections founder Donald Raab...

A Bootiful Podcast: Spring instructor Mary Ellen Bowman

Hi, Spring fans! In this installment I talk to Mary Ellen Bowman, a legendary Spring instructor!...

A Bootiful Podcast: Jonatan Ivanov, observability legend on the Micrometer team

Hi, Spring fans! In this installment we talk to one of the Willy Wonka's of observability, the amazing Jonatan Ivanov! This episode was recorded at ConFoo 2025...

A Bootiful Podcast: Johannes Bechberger, Java engineer at SAP

Hi, Spring fans! In this installment I talk to Johannes Bechberger, Java engineer working on profilers and their underlying technology in the SapMachine team at SAP. His work today comprises many open-source contributions and his blog, where he regularly writes on in-depth profiling and debugging...

A Bootiful Podcast: Spring Legend Glenn Renfro on Devnexus 2025, Cold brews, and More

Hi, Spring fans! In today's installment, I talk to Spring legend Glenn Renfro...

This Week in Spring - February 4th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's February 4th, 2025, as I write this. We are ten days away from Valentine's day, and about a month away from Devnexus. Lots to look forward to, in both the short term and the long term! Let's dive right into this week's...

This Week in Spring - January 7th, 2025

Hi, Spring fans, and happy new year! It's been another super seven days since we last spoke and, as always, there's a lot to cover so let's dive right into it! A long time in coming, but it's finally here! Hello DCO, Goodbye CLA: Simplifying Contributions to Spring the Spring AI hits just keep on...

A Bootiful Podcast: Heroku's Terence Lee

Hi, Spring fans! Happy Spring Boot 3.4.0 release day to those who celebrate! Today I'm joined by both Terence Lee, from Heroku, and my friend DaShaun Carter, and we talk about platforms, buildpacks, and more. heroku paas buildpacks,...

Spring LDAP Spring LDAP sensitive data exposure for case-sensitive comparisons

The usage of String.toLowerCase and String.toUpperCase has some Locale dependent exceptions that could potentially result in unintended columns from being queried Related to CVE-2024-38820...

This Week in Spring - November 5th, 2024

This Week in Spring - November 5th, 2024 Hi, Spring fans! Welcome to another installment of This Week in Spring! It's the 5th of November, 2024, and, um, I - an American - am desperately trying to keep calm and carry on. I did everything I can do VOTE!, and so it's with considerable enthusiasm th...

A Bootiful Podcast: GraalVM founder and BDFL Thomas Wuerthinger on GraalPy, GraalVM, and so much more

Hi, Spring fans! In this installment I talk to GraalVM founder and benevolent dictator for life Thomas Wuerthinger, recorded live from Devoxx Belgium 2024!...