Spring Tips: the Spring Authorization Server: durability of data

Hi, Spring fans! In this installment, we continue our look at the venerable Spring Authorization Server, this time looking at how to configure persistence and durability for various aspects of the system...

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!...

Reactor Netty HTTP Server Metrics DoS Vulnerability

In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service DoS condition. Specifically, an application is vulnerable if Reactor Netty HTTP Server built-in...

Spring Boot server Web Observations DoS Vulnerability

In Spring Boot versions 2.7.0 - 2.7.17, 3.0.0-3.0.12 and 3.1.0-3.1.5, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service DoS condition. Specifically, an application is vulnerable when all of the following are true:...

Spring Framework Reference Documentation Update

Starting with version 6.0.9, the Spring Framework reference documentation site is generated with Antora. This is a big change that brings many improvements. This blog post provides context around that. Overview For a long time the Spring Framework reference documentation had two versions, one...

A Bootiful Podcast: Sonatype's Steve Poole and Gradle's Justin Reock on Improving Developer Productivity without compromising on things like security

Hi, Spring fans! Welcome to another installment of a Bootiful Podcast! In this installment, recorded at Devnexus in Atlanta, GA, I talk to newcomer to the show Steve Poole, from Sonatype, and Justin Reock, from Gradle, about improving developer productivity without comprising on things like...

A Bootiful Podcast: It's Glenn Renfro! Listen to this episode if you want to feel better

Hi, Spring fans! Today Josh Long @starbuxman talks to Atlanta JUG, Devnexus, Spring Cloud Task, Spring Integration, Spring Cloud Dataflow luminary, and the living embodiment of the word "joy:" Glenn Renfro @cppwfs Watch the podcast in living color on Youtube!...

A Bootiful Podcast: Dr. Amanda Martin, Gradle developer advocate

Hi, Spring fans! In this installment, Josh Long @starbuxman talks with Gradle developer advocate Dr. Amanda Martin @DrAmandaLMartin...

A Bootiful Podcast: Vaadin's Marcus Hellberg on rich UIs, Spring Boot 3, GraalVM native images, and more

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Vaadins Marcus Hellberg @marcushellberg about rich UIs, Vaadin Flow, the new Hilla Framework, GraalVM native image compilation, and so much more...

This Week in Spring - November 8th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! Ive been busy this last week! Ive been visiting with customers and talking to the community here in South East Asia. I was in Malaysia last week, and now Im in Bangkok, Thailand. Im near the end of my time here in SE Asia,...

Privilege Escalation in spring-security-oauth2-client

Spring Security, versions 5.7 prior to 5.7.5 , and 5.6 prior to 5.6.9 , and older unsupported versions could be susceptible to a privilege escalation under certain conditions. A malicious user or attacker can modify a request initiated by the Client via the browser to the Authorization Server whi...

Spring Session 3.0.0-RC1

Spring Session 3.1.0-RC1 has been released. The biggest news from this release is that Spring Session Geode was removed which means all of the Spring Modules now belong to the same lifecycle. This means that the Spring Session BOM no longer uses CalVer and instead uses the same version as the...

Bootiful Podcast: Spring Framework contributor Sébastien Deleuze on GraalVM, AOT, project Leyden, and WebAssembly

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Spring Framework contributor Sébastien Deleuze @sdeleuze on GraalVM, AOT, project Leyden, and WebAssembly...

Spring-AMQP Remote Denial of Service - Out of Memory Error with a Large Message Body

The Spring AMQP Message object, in its toString method, will create a new String object from the message body, regardless of its size. This can cause an OOM Error with a large message body...

Reactor Netty authentication leak in redirects

Pivotal Reactor Netty, versions prior to 0.8.11, passes headers through redirects, including authorization ones. A remote unauthenticated malicious user may gain access to credentials for a different server than they have access to...

PlaintextPasswordEncoder authenticates encoded passwords that are null

Spring Security, versions 4.2.x up to 4.2.12, and older unsupported versions support plain text passwords using PlaintextPasswordEncoder. If an application using an affected version of Spring Security is leveraging PlaintextPasswordEncoder and a user has a null encoded password, a malicious user ...

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...

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...

Blank password may bypass user authentication

The ActiveDirectoryLdapAuthenticator does not check the password length. If the directory allows anonymous binds then it may incorrectly authenticate a user who supplies an empty password...

Possible XSS when using Spring MVC

The JavaScriptUtils.javaScriptEscape method did not escape all characters that are sensitive within either a JS single quoted string, JS double quoted string, or HTML script data context. In most cases this will result in an unexploitable parse error but in some cases it could result in an XSS...

Spring Office Hours Podcast: S5E24 - Jev, Java and Spring

Jev is a new model from TypeSafe that answers typed questions about your content. You send it some text and the decisions you need. It returns a probability, a choice, or a score instead of a paragraph. That makes it a natural fit for the decisions your code already has to make. Is this ticket...

CVE-2026-59295

CVE-2026-59295...

CVE-2026-59289

CVE-2026-59289...

cve-2026-59307 - HIGH - Deserialization allow-list silently bypassed: setBeanClassLoader replaces deserializer but mapper keeps stale reference

cve-2026-59307 - HIGH - Deserialization allow-list silently bypassed: setBeanClassLoader replaces deserializer but mapper keeps stale reference...

cve-2026-47862 - MEDIUM - ZipTransformer uses file_name header to build workDirectory path without sanitization

cve-2026-47862 - MEDIUM - ZipTransformer uses filename header to build workDirectory path without sanitization...

cve-2026-47844 - MEDIUM - Reactor Netty HTTP Server Leaks Exception Details

cve-2026-47844 - MEDIUM - Reactor Netty HTTP Server Leaks Exception Details...

cve-2026-47834 - MEDIUM - Spring Data JPA Sort expression validation bypass

cve-2026-47834 - MEDIUM - Spring Data JPA Sort expression validation bypass...

cve-2026-47845 - MEDIUM - Reactor Netty HTTP Server may incorrectly evaluate proxy addresses

cve-2026-47845 - MEDIUM - Reactor Netty HTTP Server may incorrectly evaluate proxy addresses...

cve-2026-47893 - LOW - Spring Framework Request Headers Included in Exception Reasons in HandshakeWebsocketService

cve-2026-47893 - LOW - Spring Framework Request Headers Included in Exception Reasons in HandshakeWebsocketService...

This Week in Spring - July 28th, 2026

Hi Spring fans! Welcome to another installment of This Week in Spring! The title says in Spring , but here in the northern hemisphere, it's clearly the middle of summer. Hot! I'm sitting here on my laptop on a warm summer day, and my laptop is indeed hot because I've spent so much time outside...

Spring AI Agentic Patterns (Part 7): Session API — Event-Sourced Short-Term Memory with Context Compaction

A New Session API for Spring AI — Structured, Compactable, Multi-Agent-Ready Part 7 of theSpring AI Agentic Patterns series completes the memory picture. After covering Agent Skills, AskUserQuestionTool, TodoWriteTool, Subagent Orchestration, A2A Integration, and AutoMemoryTools for long-term...

A Bootiful Podcast: JetBrains and Spring community legend Marco Behler

hi, Spring fans! In this installment I have the privilege of talking to JetBrains legend Marco Behler...

A Bootiful Podcast: V Körbes on security from the platform on up

Hi, Spring fans! In today's extra special installment I talk to Broadcom's V Körbes who works on security above and below the application...

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: Flowable cofounder and my friend Joram Barrez on workflow, case management, AI, Spring, and so much more

Hi, Spring fans! In this installment I catch up with my friend Joram Barrez, cofounder of Flowable, an amazing and opensource workflow engine, on their latest and greatest, AI, Spring, and so much more. workflow bpmn apache2 springboot java...

A Bootiful Podcast: Vaadin developer advocacy legend Marcus Hellberg

Hi, Spring fans! In this installment, I talk to Vaadin developer advocacy legend Marcus Hellberg about the lates-and-greatest in the wide and wonderful world of Spring...

This Week in Spring - August 6th, 2024

It's August! Egads, has that come quickly! AUGUST. The eigth month of the year, and we're almost done with the first week, in fact! It's not that I'm not grateful to be here, but, yah, wow that was quick. And, of course, the month of my all time double dutch favorite conference, SpringOne,...

A Bootiful Podcast: Digital Accessibility Architect, Java and Groovy legend, Scott Davis

Hi, Spring fans! In this episode I talk to Java ecosystem legend Scott Davis...

A Bootiful Podcast: Roni Dover on Digma AI

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

Spring Framework URL Parsing with Host Validation

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...

A Bootiful Podcast: VMware vice president Betty Junod

Hi, Spring fans! In this installment Josh Long talks to VMware vice president Betty Junod about VMware, its amazing ecosystem, and so much more...

A Bootiful Podcast: Microsoft’s Sean Li on Azure and Spring Boot

Hi, Spring fans! In this relatively quick installment, recorded live from the lovely Spring I/O 2023, Josh Long talks to Microsoft's Sean Li about some of the latest and greatest in the Azure ecosystem for Spring developers...

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...

Security Bypass With Un-Prefixed Double Wildcard Pattern

Using "" as a pattern in Spring Security configuration with the mvcRequestMatcher creates a mismatch in pattern matching between Spring Security and Spring MVC, and the potential for a security bypass...

This Week in Spring - February 28th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm writing this installment from a hotel room in Dallas, Texas, in the USA. Last night I had the privilege of hanging out with some of my friends from the local Java scene. Today I meet with customers. It's going to be a nic...

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

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

A Bootiful Podcast: Mario Fusco, the Drools rules engine project lead and fellow Java Champion

Hi, Spring fans! In this episode I talk to Drools lead Mario Fusco @mariofusco about the rules engine Drools and its integrations with Spring, Olivetti computers, and so much more...

A Bootiful Podcast: Spring legend Ramnivas Laddad

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Spring and cloud legend, Spring Cloud Connectors founder, and Cloud Foundry founder, Ramnivas Laddad @ramnivas...

This Week in Spring - November 15th, 2022

Hi, Spring fans! Howre you doin this fine Tuesday morning? Ive returned home to San Francisco and am up and at em nice and early to catch a flight to Seattle, where Ill speak at the Java User Group tonight. If youre in Seattle, dont miss it! Weve got a ton of cool stuff to get into this week, but...

Reactor Netty HTTP Server may log request headers

Reactor Netty HTTP Server, in versions 1.0.11 - 1.0.23, may log request headers in some cases of invalid HTTP requests. The logged headers may reveal valid access tokens to those with access to server logs. This may affect only invalid HTTP requests where logging at WARN level is enabled...