Spring Framework Data Binding Rules Vulnerability (CVE-2022-22968)

Table of Contents Overview Does This Affect My Application? Reassessing Your Data Binding Approach Overview While investigating the Spring Framework RCE vulnerability CVE-2022-22965 and the suggested workaround, we realized that the disallowedFields configuration setting on WebDataBinder is not...

CVE-2022-22978: Authorization Bypass in RegexRequestMatcher

UPDATES 05-17 Due to a mixup CVE-2022-22975 should have been CVE-2022-22978. The blog has been updated to reflect this correction. CVE-2022-22978 : Authorization Bypass in RegexRequestMatcher Spring Security 5.7.0, 5.6.4, 5.5.7 were released to fix CVE-2022-22978 : Authorization Bypass in...

CVE-2023-34053, CVE-2023-34055: Spring Framework and Spring Boot vulnerabilities

Updates 11-27 Blog posts updated to refer to the CVE reports published The Spring Framework 6.0.14 release shipped on November 16th includes a fix for CVE-2023-34053. The Spring Boot 2.7.18 release shipped on November 23th includes fixes for CVE-2023-34055. Users are encouraged to update as soon ...

CVE-2022-31690: Privilege Escalation in spring-security-oauth2-client

Spring Security 5.6.9 and 5.7.5 released on October 31st, 2022 included a fix for CVE-2022-31690 affecting the mapping of authorized scopes in spring-security-oauth2-client. Users are encouraged to update as soon as possible. Impact Users who have applied the mitigation should take note of the...

Spring Framework RCE, Early Announcement

Updates 04-13 "Data Binding Rules Vulnerability CVE-2022-22968" follow-up blog post published, related to the "disallowedFields" from the Suggested Workarounds 04-08 Snyk announces an additional attack vector for Glassfish and Payara. See also related Payara, upcoming release announcement 04-04...

CVE-2022-31692: Authorization rules can be bypassed via forward or include in Spring Security

Spring Security 5.6.9 and 5.7.5 released on October 31st, 2022 included a fix for CVE-2022-31692 affecting the AuthorizationFilter. Users are encouraged to update as soon as possible...

Spring Cloud Function for Azure Function

What is the Spring Cloud Function? Spring Cloud Function is a SpringBoot-based framework allowing users to concentrate on their business logic by implementing them as Java Functions i.e., Supplier, Function, Consumer. In turn the framework provides necessary abstraction to enable execution of the...

Creating a custom Spring Cloud Gateway Filter

In this article, we look into writing a custom extension for Spring Cloud Gateway. Before we get started, let’s go over how Spring Cloud Gateway works: 1. First, a client makes a network request to the Gateway 2. The Gateway is defined with a number of routes, each with Predicates to match the...

Spring Tips: Spring Security method security with special guest Rob Winch

Hi, Spring fans! In this installment I have special guest Spring Security lead Rob Winch give us a master class in how the method security support works and some of its new features. Come for the security, stay for the incredible opportunity to look over a senior engineer's shoulders as he explai...

CVE report published for Spring Cloud Function

We have released Spring Cloud Function 3.1.7 & 3.2.3 to address the following CVE report. CVE-2022-22963: Remote code execution in Spring Cloud Function by malicious Spring Expression Please review the information in the CVE report and upgrade immediately...

CVE report published for Spring Framework

We have released Spring Framework 5.3.17 and Spring Framework 5.2.20 to address the following CVE report. CVE-2022-22950: Spring Expression DoS Vulnerability Please review the information in the CVE report and upgrade immediately. Spring Boot users should upgrade to 2.5.11 or 2.6.5...

Spring Framework RCE, Mitigation Alternative

Yesterday we announced a Spring Framework RCE vulnerability CVE-2022-22965, listing Apache Tomcat as one of several preconditions. The Apache Tomcat team has since released versions 10.0.20, 9.0.62, and 8.5.78 all of which close the attack vector on Tomcats side. While the vulnerability is not in...

Spring Data MongoDB SpEL Expression Injection Vulnerability (CVE-2022-22980)

Updates 06-20 CVE-2022-22980 is published 06-20 Spring Data MongoDB 3.4.1 and 3.3.5 are available Table of Contents Overview Vulnerability Am I Impacted Status Suggested Workarounds Overview We would like to announce that we have released Spring Data MongoDB 3.4.1 and 3.3.5 to address the followi...

CVE-2022-31684: Reactor Netty HTTP Server may log request headers

The Reactor Netty 1.0.24 release on October 11 included fix for CVE-2022-31684 affecting Reactor Netty HTTP Server. Users are encouraged to update as soon as possible. Reactor Netty is used internally in many frameworks including Spring WebFlux and its WebClient. If you have a Spring Boot...

Interesting new filters on Spring Cloud Gateway 4.0

Spring Cloud Gateway 4.0 is finally here! Thanks to our community contributions we have introduced new features and interesting filters. This blog post details new noteworthy and explains some of the new filters included, how they work and how you can use it to provide more insights into your...

This Week in Spring - April 19th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! Its been quite the week since we last talked! I flew to Atlanta, GA, for my first in-person show since the pandemic - Devnexus 2022. I loved the experience! Hopefully, the only souvenirs Ill have are the amazing memories and...

Spring AI Embraces OpenAI's Structured Outputs: Enhancing JSON Response Reliability

OpenAI recently introduced a powerful feature called Structured Outputs, which ensures that AI-generated responses adhere strictly to a predefined JSON schema. This feature significantly improves the reliability and usability of AI-generated content in real-world applications. Today, we're excite...

This Week in Spring - March 21st, 2023

Hi, Spring fans! Welcome to another rip roaring installment of This Week in Spring! It's March 21st and today they announced Java 20! It's an exciting time to be a Java developer. Java 20, of course, is just another amazing installment before Java 21, which comes out in six short months, includin...

Observability with Spring Boot 3

The Spring Observability Team has been working on adding observability support for Spring Applications for quite some time, and we are pleased to inform you that this feature will be generally available with Spring Framework 6 and Spring Boot 3! What is observability? In our understanding, it is...

This Week in Spring - May 23rd, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's May 23rd and, famously, nothing major has happened in the last week OH WAIT WE RELEASED SPRING BOOT 3.1! Have you checked it out yet? It's dope. I did a Spring Tips installment looking at some of its features here that y...

Securing Spring Boot Applications With SSL

Secure Sockets Layer SSL and Transport Layer Security TLS are key components of securing communications between systems in a layered or service-oriented architecture. Spring Boot applications in such an architecture often accept incoming network connections or create outgoing connections, and...

CVE-2022-22976: BCrypt skips salt rounds for work factor of 31

Spring Security 5.7.0, 5.6.4, 5.5.7 were released to fix CVE-2022-22976: BCrypt skips salt rounds for work factor of 31. Please update as soon as possible...

Context Propagation with Project Reactor 2 - The bumpy road of Spring Cloud Sleuth

This post is a part of a series: 1. The Basics 2. The bumpy road of Spring Cloud Sleuth 3. Unified Bridging between Reactive and Imperative Spring Cloud Sleuth recently became Micrometer Tracing, part of the Micrometer project. Most of the tracing instrumentation is centered within Micrometer und...

Spring Boot CDS support and Project Leyden anticipation

How can Spring Boot developers improve the runtime efficiency of their applications with minimal constraints in order to enjoy those benefits on most applications? The answer is the CDS support introduced by Spring Boot 3.3 which allows you to start your Spring Boot applications faster and consum...

Context Propagation with Project Reactor 3 - Unified Bridging between Reactive and Imperative

This post is a part of a series: 1. The Basics 2. The bumpy road of Spring Cloud Sleuth 3. Unified Bridging between Reactive and Imperative We concluded the last article with the thought that Spring Cloud Sleuth’s MANUAL context propagation strategy is both performant and provides correct...

Spring Data REST Vulnerability (CVE-2022-31679)

Updates - 09-19 Vulnerability announced here and Spring Data REST 3.6.7 and 3.7.3 released - 09-19 Blog post updated to refer to the CVE report published The Spring Data 2021.1.7 and 2021.2.3 releases shipped on September 19th contained releases for Spring Data REST 3.6.7 and 3.7.3 which include...

A Bootiful Podcast: Jetbrains legend Dmitry Jemerov

Hi, Spring and IntelliJ IDEA fans! This week we celebrate 25 years of Jetbrains IntelliJ IDEA, and who better to talk to us about its evolution than Dmitry Jemerov, whose been a contributor and developer for the project since 2003!...

Spring Data JDBC - How To Maintain Your Database Schema

This is the fifth article of a series about how to tackle various challenges you might encounter when using Spring Data JDBC. The series consists of: 1. Spring Data JDBC - How to use custom ID generation? 2. Spring Data JDBC - How do I make bidirectional relationships?. 3. Spring Data JDBC - How ...

This Week in Spring - October 25th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! When last we spoke, I was in Las Vegas, NV, for the JavaOne show. It was amazing! Im in sunny Singapore, then off to Malaysia and Thailand. Its the first time Ive been to any of these places since 2019! How good it is to be...

This Week in Spring - November 1st, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! Howre you doin? I hope youre doing well and had a great Halloween if you celebrate. Im doing great. Im in sunny Kuala Lumpur, Malaysia, eating delicious food and hanging out with amazing people. Tomorrow, Im off to Penang,...

Active Health Check strategies with Spring Cloud Gateway

Active health check strategies with Spring Cloud Gateway Nowadays, applications are built as a collection of small independent upstream services. This accelerates development and allows modules to be focused on specific responsibilities, increasing their quality. This is one of the main advantage...

This Week in Spring - August 20th, 2024

Hi, Spring fans! Welcome to another installment in This Week in Spring! And happy week-before-SpringOne! I'm so excited I could spit! As you might imagine, AI, cloud native architecture, and so much more are top-of-mind. I love AI, and all its many applications. In that spirit, let's get ChatGPT ...

This Week in Spring - May 17th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! I am in beautiful Barcelona, Spain, this week, ahead of the upcoming Spring I/O show. I just spent a wonderful week in amazing England, meeting old friends, speaking at Devoxx UK, etc. A Bootiful Podcast: EasyMock contributor...

CVE report published for Spring Security OAuth

We have released Spring Security OAuth 2.5.2 to address the following CVE report. CVE-2022-22969: Denial-of-Service DoS in spring-security-oauth2 This vulnerability exposes OAuth 2.0 Client applications only. Please review the information in the CVE report and upgrade immediately...

This Week in Spring - January 16th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's the 16th of January already! We're closer to February than not! I can hardly believe it. As always, we've got a lot to cover so let's dive right into it. the Spring Authorization Server 1.3.0-m1 is now available this is...

This Week in Spring - July 26th, 2022

Aloha, Spring fans! Im on vacation, reporting to you from the paradise-like island of Maui, Hawaii, and hoping that youre having a wonderful day! My family and I love Hawaii. Its brimming with beauty and serenity, and while the island of Maui, in the state of Hawaii, is very small, the islands ar...

This Week in Spring - June 21st, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! How are you? Its been a hot minute since we last chatted. I was in Germany this time last week. Now, Im back in beautiful San Francisco. Today the weather will climb to a monumental 84 F! Thats very unusual, for any time of t...

This Week in Spring – March 18th, 2025

Hi, Spring fans! I just got back from the amazing JavaOne show held in Redwood Shores. It was a fun, uproarious event and a great chance to reconnect with tons of friends, old and new. I love this community! One of the central highlights of this show? Java 24 is here, finally! And, as usual, we'v...

This Week in Spring - March 5th, 2024

Hi, Spring fans! Welcome to another exciting roundup of This Week in Spring! I expect many of you are reading this for the first time, especially with Facebook and Instagram being down. People have been exploring all the other lesser-known corners of the web, looking for their daily "doom scroll....

This Week in Spring - February 27th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring wherein we explore the latest-and-greatest in the wonderful world of Springdom. This week's going to be a very good one, so let's dive right into it! good news everyone! Spring Boot's been updated! 3.3.0-M2, 3.2.3, and 3.1.9 a...

Spring WS Samples upgraded for Spring Boot 3.0!

With the recent announcement of Spring Boot 3.0 going GA, some of you may be interested in upgrading your Spring Web Services-based applications to take full advantage of this. The Spring WS team has upgraded our set of sample apps to help you carry that out. The main branch now tracks the versio...

This Week in Spring - June 23rd, 2026

Hi Spring fans! In this installment, we look at the wide and wonderful world of Spring, as usual, and there's a good amount to get to, fresh off the recent Spring Boot 4.1 generation release train, so let's dive right into it! I wrote a blog post looking at Spring Batch, MongoDB, and Spring Boot...

CVE-2024-22233: Spring Framework server Web DoS Vulnerability

The Spring Framework 6.0.16 and 6.1.3 releases shipped on January 11th includes a fix for CVE-2024-22233. The Spring Boot 3.1.8 and 3.2.2 releases shipped last week upgrade to the relevant Spring Framework versions. Users are encouraged to update as soon as possible...

This Week in Spring - September 26th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! How are you? It's September 26th, 2023, and I am in sunny Singapore for SpringOne at VMWare Explore Singapore. If you're around, don't forget to say hi! It's gonna be a fun and busy week in Singapore, and then next week I'm o...

Spring Authorization Server is on Spring Initializr!

Today, I'm excited to announce that you have a new superpower: creating applications with Spring Authorization Server on Spring Initializr! That's right, it's time to begin your OAuth2 journey and become the hero you always knew you could be! In this post, I'll explain how you can get the most fr...

Spring Cloud Azure 5.0 is now Generally Available

Were very pleased to announce that Spring Cloud Azure 5.0 is now generally available. This major release includes the following features, improvements, and documentation updates: Compatible with Spring Boot 3 and Spring Cloud 2022.0.0 Supports Passwordless Connections Updated Azure for Spring...

New in Spring 6.1: RestClient

Spring Framework 6.1 M2 introduces the RestClient, a new synchronous HTTP client. As the name suggests, RestClient offers the fluent API of WebClient with the infrastructure of RestTemplate. Fourteen years ago, when RestTemplate was introduced in Spring Framework 3.0, we quickly discovered that...

Kotlin DSLs in the world of Springdom

Kotlin is a beautiful language that makes it trivial to take old Java libraries and make them much more concise, just by virtue of the Kotlin syntax itself. It shines, however, when you write DSLs. Here's some inside baseball for you: the Spring teams do their level-headed best to be cohesive, to...

Announcing Spring AI MCP: A Java SDK for the Model Context Protocol

We're excited to introduce Spring AI MCP, a robust Java SDK implementation of the Model Context Protocol MCP. This new addition to the Spring AI ecosystem brings standardized AI model integration capabilities to the Java platform. What is MCP? The Model Context Protocol MCP is an open protocol th...

This Week in Spring - November 22nd, 2022 - Spring Boot 3 and Thanksgiving edition!

Hi, Spring fans! Its Tuesday, the 22nd of November, 2022, as I write this, which means were two days away from Spring Boot 3 and Thanksgiving. Spring Boot 3, Ive written about in abundance so I wont rehash that. If you want to learn more about some of the amazing new features in Spring Framework ...