Authorization Bypass During JWT Issuer Validation with spring-security

Spring Security versions 5.1.x prior to 5.1.2 contain an authorization bypass vulnerability during JWT issuer validation. In order to be impacted, the same private key for an honest issuer and a malicious user must be used when signing JWTs. In that case, a malicious user could fashion signed JWT...

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...

DoS Attack with XML Input

XML external entities were previously disabled with the publication of http://pivotal.io/security/cve-2013-6429 . If DTD is not entirely disabled, inline DTD declarations can be used to perform Denial of Service attacks known as XML bombs. Such declarations are both well-formed and valid accordin...

A Bootiful Podcast: Netflix's Paul Bakker

Hi, Spring fans! This week’s interview is a must-watch if you care about where Java is headed next. This week, I talk to Netflix's Paull Bakker! We dig into Netflix’s real-world playbook for scaling Java, cutting costs with newer JDKs, and replacing reactive complexity with virtual threads and...

A Bootiful Podcast: BellSoft's Catherine Edelveis on hardened runtime images, container security, and more

Hi, Spring fans! I chat with BellSoft’s Catherine Edelweiss about using buildpacks and hardened images to ship Spring Boot apps with stronger security, cleaner defaults, and far less Dockerfile pain. BellSoft Docker Java JRE SpringBoot...

CVE-2026-59324

CVE-2026-59324...

CVE-2026-59320

CVE-2026-59320...

CVE-2026-59292

CVE-2026-59292...

cve-2026-59274 - MEDIUM - Unbounded decompression in UnZipTransformer enables zip-bomb DoS

cve-2026-59274 - MEDIUM - Unbounded decompression in UnZipTransformer enables zip-bomb DoS...

cve-2026-47881 - MEDIUM - Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File

cve-2026-47881 - MEDIUM - Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File...

cve-2026-59276 - MEDIUM - Timing Attack via Non-Constant-Time Comparison of Sensitive Values

cve-2026-59276 - MEDIUM - Timing Attack via Non-Constant-Time Comparison of Sensitive Values...

cve-2026-59281 - MEDIUM - Spring Framework Cross-site Scripting via EscapedErrors

cve-2026-59281 - MEDIUM - Spring Framework Cross-site Scripting via EscapedErrors...

cve-2026-47852 - HIGH - Predictable cache directory location allows local ONNX model substitution in Spring AI

cve-2026-47852 - HIGH - Predictable cache directory location allows local ONNX model substitution in Spring AI...

cve-2026-47882 - LOW - CVE-2026-47882: Spring Boot DevTools remote secret generated with a non-cryptographic PRNG

When enabling Spring Boot DevTools support for a remote application target for example a Docker container or Cloud Foundry app from the Spring Tools Boot Dashboard, Spring Tools generates a shared secret that authenticates DevTools remote-restart uploads to the deployed application. This secret w...

cve-2026-40997 - MEDIUM - SOAP security faults leak Spring Security account state

cve-2026-40997 - MEDIUM - SOAP security faults leak Spring Security account state...

cve-2026-41001 - MEDIUM - Predictable Temp Directory in Artemis Auto-configuration

cve-2026-41001 - MEDIUM - Predictable Temp Directory in Artemis Auto-configuration...

cve-2026-40992 - MEDIUM - Mail Auto-Configuration Does Not Enable SSL Hostname Verification

cve-2026-40992 - MEDIUM - Mail Auto-Configuration Does Not Enable SSL Hostname Verification...

cve-2026-41711 - MEDIUM - Potential Denial of Service through crafted Sort Parameters

cve-2026-41711 - MEDIUM - Potential Denial of Service through crafted Sort Parameters...

cve-2026-41731 - HIGH - In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization

cve-2026-41731 - HIGH - In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization...

cve-2026-41701 - MEDIUM - In Spring AMQP sequential correlation IDs enable reply poisoning on fixed reply queues

cve-2026-41701 - MEDIUM - In Spring AMQP sequential correlation IDs enable reply poisoning on fixed reply queues...

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

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

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...

This Week in Spring - March 9th, 2026

Hi Spring fans! Welcome to another rip-roaring installment of This Week in Spring! I'm writing this in an Uber en route to the airport to get to awsome Atlanta, GA, for Devnexus 2026! Who's goin'? You goin'? We - the Spring team - will be there in force! Come say hi at the boothes or come see our...

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...

Introducing Jackson 3 support in Spring

This is a new blog post in the Road to GA series, this time sharing more details on the new Jackson 3 support, just a few days after Jackson 3.0.0 GA release, about to be introduced in Spring Boot 4 and related Spring portfolio projects. Jackson is by far the most used JSON library on the JVM, an...

This Week in Spring - September 23rd, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm preparing my talks for several amazing shows including: Commit Your Code conference in Plano, Texas starting tomorrow; Dev2Next in Colorado; Devoxx Belgium in Antwerp, Belgium; and CloudFoundry Days in Germany. So much go...

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...

A Bootiful Podcast: Purnima Padmanabhan, General Manager, Tanzu Division, Broadcom

Hi, Spring fans! In this installment, we talk to the general manager of Tanzu, the legendary Purnima Padmanabhan, about AI, the power of the platform, and more. Recorded live from SpringOne 2025!...

This Week in Spring - August 5th, 2025

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's August 5th! Which means we're only 20 days away until SpringOne 2025! Have you registered? There's so much to cover this week, so let's dive right into it! Spring Shell 3.4.1 is out! - the new release includes a number o...

Authentication Leak On Redirect With Reactor Netty HTTP Client

In some specific scenarios with chained redirects, Reactor Netty HTTP client leaks credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects...

A Bootiful Podcast: 'Mr. Apache' Jeff Genender

Hi, Spring fans! In this episode I'm joined by well-known member of the Java community Jeff Genender, whose contributions to Apache over the decades have driven several key projects with which you're no doubt familiar...

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...

HTTP/3 support in Reactor 2024.0 Release Train

HTTP/3, the latest major version of the Hypertext Transfer Protocol, had its specification finalized in June 2022. This version is designed to enhance performance, reliability, and security. Unlike its predecessors, HTTP/3 utilizes QUIC instead of TCP as its transport layer. QUIC is a UDP-based,...

From Spring Framework 6.2 to 7.0

Dear Spring community, Spring Framework 6.2 is shaping up for general availability in November 2024, with particularly significant revisions in the core container and in our web support: see "What's New in Spring Framework 6.2". This release is designed for use with JDK 17-23 and Jakarta EE 9-10...

A Bootiful Podcast: Gradle and Develocity engineer and Spring community legend Eric Haag

Hi, Spring fans! In this episode I talk to Gradle and Develocity engineer and Spring community legend Eric Haag...

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...

Spring Tips: Testcontainers, Docker Compose, and Service Connections, oh my

Hi, Spring fans! In this installment, we look at the amazing service connection mechanism in Spring Boot. Service connections are what allow Spring Boot to connect to Testcontainers or Docker Compose containers for supporting infrastructure like SQL databases, middleare, and more. java...

Arbitrary File Write Vulnerability in Spring Cloud Data Flow

Spring Cloud Data Flow is a microservices-based Streaming and Batch data processing in Cloud Foundry and Kubernetes. The Skipper server has the ability to receive upload package requests. However, due to improper sanitization for upload path, a malicious user who has access to skipper server api...

A Bootiful Podcast: Tagir Valeev, Fellow Java Champion and IntelliJ IDEA Java legend

Hi, Spring fans! In today's installment we talk to Tagir Valeev, a fellow Java Champion and IntelliJ IDEA Java legend. Also: don't forget to try out the just-released Spring Boot 3.3 release!...

A Bootiful Podcast: Netflix’s Paul Bakker and Kavitha Srinivasan on scaling Spring Boot and Spring GraphQL

Hi, Spring fans! In this installment, I'm thrilled to be joined by Netflix's Paul Bakker and Kavitha Srinivasan, who explain how they're integrating and evolving Spring for GraphQL in their own GraphQL stack and how they're managing, growing, and evolving thousands of services written in Spring B...

A Bootiful Podcast: Joseph Ottinger and Andrew Lombardi on "Beginning Spring 6"

Hi, Spring fans! In this episode I'm joined by Java luminaries and Apress' Beginning Spring 6 authors Joseph Ottinger and Andrew Lombardi...

A Bootiful Podcast: iText Creator Bruno Lowagie

Hi, Spring fans! We're releasing Spring Boot 3.2 today! And it's Thanksgiving in the USA Happy Thanksgiving!. So, we wanted to celebrate with an amazing episode, and so today's guest is opensource legend Bruno Lowagie. Enjoy!...

This Week in Spring - October 31st, 2023

Hi Spring fans, and Happy Halloween from the Spring team to those who celebrate! I hope your evening is fun and your day free of scary bugs! My friends, we've got some interesting stuff to look at this week so let's dive right into it. A Bootiful Podcast: Mr. Spring in Action, Craig Walls Spring...

This Week in Spring - October 10th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! Last week I was in Antwerp, Belgium, for the amazing Devoxx Belgium event, and this week I've been in Amsterdam for the SpringOne Tour Amsterdam stop and - in the middle of the SpringOne Tour Amsterdam event - I dipped out to...

A Bootiful Podcast: Tadaya Tsuyukubo, creator of R2DBC Proxy, DataSource Proxy, and more

HI, Spring fans! In this installment Josh Long talks to R2DBC Proxy creator Tadaya Tsuyukubo, @ttddyy, creator of R2DBC Proxy and others...

This Week in Spring - August 1st, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! Can you believe it's already August 1, 2023??? Me either. As I write this, I'm preparing some of my contributions for SpringOne at VMWare Explore 2023, happening next month in lovely Las Vegas, NV. Have you registered yet? I'...

A Bootiful Podcast: Elastic's Philipp Krenn

Hi Spring fans! Welcome to another installment of a Bootiful Podcast! In this installment, Josh Long talks to Elastic's Philipp Krenn, live from Spring IO 2023 in beautiful Barcelona, Spain!...

A Bootiful Podcast: Java Developer Advocate Billy Korando on the latest and greatest in Java

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Java Developer Advocate Billy Korando, recorded live from the amazing Spring I/O show in Barcelona, Spain!...