Server-Side Request Forgery via Filter Expression Keys in Neo4jVectorStore

spring-ai-neo4j-store contains a Cypher injection vulnerability in Neo4jVectorFilterExpressionConverter . When a user-controlled string is passed as a filter expression key in Neo4jVectorFilterExpressionConverter of spring-ai-neo4j-store , doKey embeds the key into a backtick-delimited Cypher...

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...

Blending Chat with Rich UIs with Spring AI and MCP Apps

The way humans typically interact with AI is via a chat-style interface such as ChatGPT or Claude Desktop. In fact, the ability to converse with an AI in natural language is perhaps one of the most amazing things about this technology. It lets humans talk to computers in human terms, rather than...

This Week in Spring - January 26th, 2026

Hi, Spring fans! Welcome to another installment of This Week in Spring! As I write this, I cannot believe we're nearly at the end of the month! Time sure flies. Spring AI 2.0.0-M2 is available now Spring Modulith 2.1 M1, 2.0.2, and 1.4.7 released In last week's installment of A Bootiful Podcast ,...

This Week in Spring - January 13th, 2026

Hi, Spring fans, and welcome to another installment of This Week in Spring! It's the 13th of January, 2026, and it's been quite the week indeed! Let's dive right into it! Nobody, and I mean nobody , asked. So I put together a video on how to use Spring WS to build SOAP-based services in 2026. Hey...

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...

A Bootiful Podcast: Oracle VP and GraalVM founder Thomas Wuerthinger

Hi, Spring fans! In this installment I talk to Oracle VP and GraalVM founder Thomas Wuerthinger, recorded at Devoxx 2025!...

This Week in Spring - October 14th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm in Boston and New York city and Bulgaria and Poland this week, but I'm still hyped about last week's amazing Devoxx Belgium event! There are a ton of videos to look at, and I'll include just some of them here. So, without...

This Week in Spring: September 30th, 2025

Hi, Spring fans! As I write this I am about to board a flight for Colorado for the amazing Dev2Next conference! I'll be in Antwerp, Beglium for the amazing Devoxx event next week, and I'll be speaking at the Amsterdam JUG with James Ward on the Thursday after that, too! If you're around, be sure ...

This Week in Spring - September 2nd, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm in Frankfurt, awaiting my flight to the Java-tastic Javazone 2025 event where I'll be joined by the legendary James Ward to deliver an AI-focused look at the latest-and-greatest in Spring! And I'm still recovering from th...

This Week in Spring - August 19th, 2025

Hi, Spring fans! Welcome to another extra special installment of This Week in Spring - special because the next installment will be delivered from the floors of the Ventian where the extraordinairily awesome SpringOne 2025 event will take place! So, some poetry: T’was the Week Before SpringOne...

A Bootiful Podcast: Spring Security lead Rob Winch on Spring Security 7.0, SpringOne 2025, and more

Hi, Spring fans! In this installment I'm joined by Spring Security lead Rob Winch to discuss the amazing new additions to Spring Security 7.0, coming in November of 2025, and the coverage you can expect when you see our talk at SpringOne 2025 have you registered - https://springone.io ?...

This Week in Spring - July 29th, 2025

It's the end of July! JULY! The seventh month of the year, done and dusted! AHHHHH! I've got memories of being on a tropical beach over the winter holidays, sipping rum and dodging mosquitoes like I was doing a rhythmic gymnastics routine just recently. It turns out that was seven months ago, not...

This Week in Spring - July 8th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! I write this having spent a wonderful week in paradise Bora Bora, French Polynesia, to be precise with my partner Tam Mie. We were so very sad to have to say goodbye. But that means I'm officially back at my desk, with nary a...

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: This Week in Spring (AI) - May 20th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! As I write this, I'm in sunny Stockholm, Sweden for the JForum 123 installment. This is, apparently, the first time the meetup is completely full up since before the pandemic, with more than 150 people in attendance! Tak,...

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!...

Spring Cloud Config Server May Not Use Vault Token Sent By Clients

Spring Cloud Config Server may not use Vault token sent by clients using a X-CONFIG-TOKEN header when making requests to Vault. Your application may be affected by this if the following are true: In this case the SessionManager persists the first token it retrieves and will continue to use that...

A Bootiful Podcast: Java Champion and legend Henri Tremblay

Hi, Spring fans! In this installment I talk to Henri Tremblay, head of TS Imagine Canada, Java Champion, Montreal JUG leader, EasyMock lead dev and all around legend!...

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...

Building Effective Agents with Spring AI (Part 1)

In a recent research publication: Building effective agents, Anthropic shared valuable insights about building effective Large Language Model LLM agents. What makes this research particularly interesting is its emphasis on simplicity and composability over complex frameworks. Let's explore how...

A Bootiful Podcast: Dr. Dave Syer on the new and nifty Spring gRPC project

Hi, Spring fans! In this installment I talk to the good and the great Dr. Dave Syer about the experimental! new Spring gRPC project!...

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!...

A Bootiful Podcast: Sébastien Deleuze on Spring Framework and Kotlin, GraalVM, Project Leyden, AppCDS, runtime efficiency, Kotlin, and more

Dive deep into the world of Spring Framework and Kotlin, GraalVM, Project Leyden, AppCDS, runtime efficiency, Kotlin, and more, with the one and only Sébastien Deleuze! From runtime efficiency to all things Kotlin, this episode is packed with expert insights and valuable information. Don't miss o...

Signature Forgery Vulnerability in Spring Boot's Loader

Applications that use spring-boot-loader or spring-boot-loader-classic and contain custom code that performs signature verification of nested jar files may be vulnerable to signature forgery where content that appears to have been signed by one signer has, in fact, been signed by another...

Spring Framework DoS via conditional HTTP request

Applications that parse ETags from "If-Match" or "If-None-Match" request headers are vulnerable to DoS attack...

A Bootiful Podcast: Observability legend Jonatan Ivanov on the latest and greatest in Micrometer

Hi, Spring fans! In this installment we talk to observability legend Jonatan Ivanov about the latest and greatest in the wide and wonderful world of observability. Turns out a library that's used by countless projects including and beyond the Spring ecosystem keeps quite busy!...

A Bootiful Podcast: Oleg Šelajev, Docker and Testcontainers legend

Hi, Spring and Testcontainers fans! In this interview, I talk to Oleg Šelajev...

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 Framework URL Parsing with Host Validation (2nd report)

Applications that use UriComponentsBuilder to parse an externally provided URL e.g. through a query parameter AND perform validation checks on the host of the parsed URL may be vulnerable to a open redirect attack or to a SSRF attack if the URL is used after passing validation checks. This is the...

Insertion of Sensitive Information into Log Sourced from Failed Revocation of Tokens

In Spring Vault, versions 3.0.x prior to 3.0.2 and versions 2.3.x prior to 2.3.3 and older versions, an application is vulnerable to insertion of sensitive information into a log file when it attempts to revoke a Vault batch token. Specifically, an application is vulnerable when all of the...

Spring Modulith 0.3 released

Hot on the heels of Spring Boot 3.0.2, I am excited to announce the 0.3 release of Spring Modulith. The release is packed with improvements. We have tweaked a couple of things that might require your attention and a couple of adapting changes to your code. The most notable changes are: GH-114 – W...

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...

A Bootiful Podcast: the good Dr. David Syer on the new and novel in Spring and Kubernetes

Hi, Spring fans! In this installment, Josh Long talks to Spring Boot and Spring Cloud luminary, the good Dr. @DavidSyer, about the latest and greatest on Spring and Kubernetes...

This Week in Spring - April 5th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! Im back home from the Hawaiin islands. Its so good to be home. First things first: theres a security vulnerability. Weve already released guidance on how to mitigate as well as new releases of Spring Framework and Spring Boot...

Additional information exposure with Spring Data JPA derived queries

This affects Spring Data JPA in versions up to and including 2.1.5, 2.0.13 and 1.11.19. Derived queries using any of the predicates ‘startingWith’, ‘endingWith’ or ‘containing’ could return more results than anticipated when a maliciously crafted query parameter value is supplied. Also, LIKE...

XML External Entity Injection (XXE)

Spring Web Services, versions 2.4.3, 3.0.4, and older unsupported versions of all three projects, were susceptible to XML External Entity Injection XXE when receiving XML data from untrusted sources...

Privilege Escalation in spring-security-oauth2

Spring Security OAuth, versions 2.3 prior to 2.3.4, and 2.2 prior to 2.2.3, and 2.1 prior to 2.1.3, and 2.0 prior to 2.0.16, and older unsupported versions could be susceptible to a privilege escalation under certain conditions. A malicious user or attacker can craft a request to the approval...

Cross Site Tracing (XST) with Spring Framework

Spring Framework versions 5.0.x prior to 5.0.7, versions 4.3.x prior to 4.3.18, and older unsupported versions allow web applications to change the HTTP request method to any HTTP method including TRACE using the HiddenHttpMethodFilter in Spring MVC. If an application has a pre-existing XSS...

Remote Code Execution with spring-security-oauth2

Spring Security OAuth, versions 2.3 prior to 2.3.3 and 2.2 prior to 2.2.2 and 2.1 prior to 2.1.2 and 2.0 prior to 2.0.15 and older unsupported versions, contains a remote code execution vulnerability. A malicious user or attacker can craft an authorization request to the authorization endpoint th...

Stored XSS in file upload of Spring Batch Admin

Cross-site scripting XSS vulnerability in the file upload feature of Spring Batch Admin allows a remote attacker to inject arbitrary web script or HTML via a crafted request related to the file upload functionality...

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...

Data Binding Expression Vulnerability in Spring Web Flow

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 expressions in view states that process form submissions but do not have a sub-element to declare explicit data bindi...

RFD Attack in Spring Framework

Under some situations, the Spring Framework is vulnerable to a Reflected File Download RFD attack. The attack involves a malicious user crafting a URL with a batch script extension that results in the response being downloaded rather than rendered and also includes some input reflected in the...

Directory Traversal in Spring Framework

Some URLs were not santized correctly before use allowing an attacker to obtain any file on the file system that was also accessible to process in which the Spring web application was running...

XSS when using Spring MVC

When a programmer does not specify the action on the Spring form, Spring automatically populates the action field with the requested uri. An attacker can use this to inject malicious content into the form...