Path traversal vulnerability in functional web frameworks

Applications serving static resources through the functional web frameworks WebMvc.fn or WebFlux.fn are vulnerable to path traversal attacks. An attacker can craft malicious HTTP requests and obtain any file on the file system that is also accessible to the process in which the Spring application...

Spring Expression DoS Vulnerability

In Spring Framework versions 5.3.0 - 5.3.38 and older unsupported versions, it is possible for a user to provide a specially crafted Spring Expression Language SpEL expression that may cause a denial of service DoS condition. Specifically, an application is vulnerable when the following is true:...

Spring Tips: Proxies

Hi, Spring fans! In this installment we look at the use of JDK and CGLIB-based proxies in Spring, and demystify their application Java SpringBoot SpringFramework Architecture DesignPatterns oop...

A Bootiful Podcast: Jetbrains Developer Advocate Pasha Finkelshteyn

Hi, Spring fans! In this week's installment I talk to Jetbrains' Developer Advocate Pasha Finkelshteyn...

A Bootiful Podcast: Spring founders Rod Johnson and Juergen Hoeller on the 20th Anniversary of Spring Framework 1.0

Hi, Spring fans! In this episode, more than 20 incredible years in the making, Spring founders Rod Johnson @springrod and Juergen Hoeller @springjuergen discuss Spring since its 1.0 release in 2004...

PKCE Downgrade in Spring Authorization Server

Spring Authorization Server versions 1.0.0 - 1.0.5, 1.1.0 - 1.1.5, 1.2.0 - 1.2.2 and older unsupported versions are susceptible to a PKCE Downgrade Attack for Confidential Clients. Specifically, an application is vulnerable when a Confidential Client uses PKCE for the Authorization Code Grant. An...

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...

A Bootiful Podcast: Dr. Venkat Subramaniam, on the latest in Java

Hi, Spring fans! In this installment the good and the great Dr. Venkat Subramaniam rejoins the show, live from the fantastic VOXXED DAYS CERN event, to talk about some of the amazing features in Java 21...

A Bootiful Podcast: Gunnar Morling on the 1BRC challenge and taking Java to BLAZING fast performance territory

Hi, Spring fans! In this installment, I talk to fellow Java Champion Gunnar Morling, and we look at how his 1BRC challenge helped the community eek out some of Java's best performance numbers...

local information disclosure via temporary directory created with unsafe permissions

In Spring Cloud Contract, versions 4.1.x prior to 4.1.1, versions 4.0.x prior to 4.0.5, and versions 3.1.x prior to 3.1.10, test execution is vulnerable to local information disclosure via temporary directory created with unsafe permissions through the shaded com.google.guava:guava dependency in...

This Week in Spring - December 19th, 2023

Hi, Spring fans! Welcome to another oh-so-festive edition of This Week in Spring! the Spring Authorization Server 1.2.1, 1.1.14, and 0.4.5, are now available Spring AMQP 3.1.1 is now available Spring Security 5.8.9, 6.1.6, 6.2.1 are now available Spring for Apache Kakfa 3.1.1 is now available...

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!...

A Bootiful Podcast: Micrometer lead Tommy Ludwig

Hi, Spring fans! In this installment, Josh Long talks to Micrometer lead Tommy Ludwig, recorded from beautiful Barcelona, Spain during the fabulous Spring I/O event!...

A Bootiful Podcast: Spring Boot team member Moritz Halbritter (@m_halbritter)

Hi, Spring fans! In this installment Josh Long YouTube.com/@coffeesoftware.com talks to Spring Boot team member Moritz Halbritter @mhalbritter...

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: James Ward, Kotlin Product Manager at Google

Hi, Spring fans! In this installment Josh Long talks to James Ward, Kotlin Product Manager at Google...

Spring Data JPA introduces query parser!

The Problem One of Spring Data JPA’s handy features is letting you plugin in custom JPA queries through its @Query annotation. This allows some flexiblity because you are still able to offer sort parameters to the consumers of your app. Check out the example below: interface SampleRepository...

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: 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: 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...

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...

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,...

Remote Code Execution via YAML editors in STS4 extensions for Eclipse and VSCode

Spring Tools 4 for Eclipse version 4.16.0 and below as well as VSCode extensions such as Spring Boot Tools, Concourse CI Pipeline Editor, Bosh Editor and Cloudfoundry Manifest YML Support version 1.39.0 and below all use Snakeyaml library for YAML editing support. This library allows for some...

Spring Tips: Spring Boot & Apache Kafka

Hi, Spring fans! In this installment of Spring Tips, I look at the venerable Apache Kafka broker and its integrations at various level of abstraction in the Spring Boot ecosystem. Want to learn more about event driven architectures, AOT and GraalVM, Apache Kafka, and Spring Boot? SpringOne 2022 i...

A Bootiful Podcast: Spring and Java community legend Marten Deinum

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to longtime Spring community member and legend Marten Deinum @mdeinum about scuba diving, software, Spring, community, and more. Also: I fixed the odd silence in the middle of the last few episodes! thanks for suffering through it...

Delete Passwords: Passwordless Connections for Spring Boot Apps to Azure Services

Using username/password credentials to access one application from another presents a huge security risk for many reasons. Today, we are announcing the preview of passwordless connections for Java applications to Azure database and eventing services, letting you finally shift away from using...

Potential Unintended Data Exposure for Resource Exposed by Spring Data REST

Applications that allow HTTP PATCH access to resources exposed by Spring Data REST in versions 3.6.0 - 3.6.5, 3.7.0 - 3.7.2, and older unsupported versions, if an attacker knows about the structure of the underlying domain model, they can craft HTTP requests that expose hidden entity attributes...

A Bootiful Podcast: Observability guru Jonatan Ivanov on the future of observability in Spring Boot

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Spring observability guru Jonatan Ivanov @jonatanivanov...

A Bootiful Podcast: Kubernetes cofounder and vice president of R&D at VMware, Craig McLuckie

Hi, Spring fans! Welcome to another installment of a Bootiful Podcast! In this episode, Josh Long @starbuxman talks to Kubernetes cofounder, all-around nice person, and vice president of R&D at VMware, Craig McLuckie @cmcluck...

Directory Traversal with spring-cloud-config-server

Spring Cloud Config, versions 2.2.x prior to 2.2.2, versions 2.1.x prior to 2.1.7, and older unsupported versions allow applications to serve arbitrary configuration files through the spring-cloud-config-server module. A malicious user, or attacker, can send a request using a specially crafted UR...

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...

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...

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...

Unsafe Unzip with spring-integration-zip

spring-integration-zip , versions prior to 1.0.1, exposes an arbitrary file write vulnerability, that can be achieved using a specially crafted zip archive affects other archives as well, bzip2, tar, xz, war, cpio, 7z, that holds path traversal filenames. So when the filename gets concatenated to...

Issuer validation regression in Spring Cloud SSO Connector

Spring Cloud SSO Connector, version 2.1.2, contains a regression which disables issuer validation in resource servers that are not bound to the SSO service. In PCF deployments with multiple SSO service plans, a remote attacker can authenticate to unbound resource servers which use this version of...

Directory Traversal with Spring MVC on Windows

Spring Framework versions 5.0 to 5.0.4, 4.3 to 4.3.14, and older unsupported versions allow applications to configure Spring MVC to serve static resources e.g. CSS, JS, images. When static resources are served from a file system on Windows as opposed to the classpath, or the ServletContext, a...

Spring Batch Admin vulnerable to Cross Site Request Forgery

Spring Batch Admin does not contain Cross Site Request Forgery CSRF protection, which may allow an attacker to craft a malicious site that executes requests to Spring Batch Admin...

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...

Fix for XML External Entity (XXE) Injection (CVE-2013-7315) in Spring Framework was Incomplete

Spring MVC's SourceHttpMessageConverter also processed user provided XML and neither disabled XML external entities nor provided an option to disable them. SourceHttpMessageConverter has been modified to provide an option to control the processing of XML external entities and that processing is n...

This Week in Spring - September 15th, 2026

Hi, Spring fans! Welcome to another rip-roarin' installment of This Week in Spring! I'm writing this to you from sun-kissed San Francisco, CA, sipping some coffee and watching the bay from my breakfast nook. What a wonderful day! A wonderful day in which to learn about the latest and greatest in...

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...

CVE-2026-59324

CVE-2026-59324...

CVE-2026-59292

CVE-2026-59292...

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-2026-47888 - MEDIUM - Spring Framework Memory Leak via SETUP Frame in RSocketMessageHandler

cve-2026-47888 - MEDIUM - Spring Framework Memory Leak via SETUP Frame in RSocketMessageHandler...

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-2026-47885 - MEDIUM - Spring Framework maxPartSize Ignored in PartEventHttpMessageReader

cve-2026-47885 - MEDIUM - Spring Framework maxPartSize Ignored in PartEventHttpMessageReader...

cve-2026-47886 - MEDIUM - Spring Framework Denial of Service via Unbounded Exponentiation in SpEL Expressions

cve-2026-47886 - MEDIUM - Spring Framework Denial of Service via Unbounded Exponentiation in SpEL Expressions...

cve-2026-47894 - MEDIUM - Spring Cloud Config Server Native Environment Repository Exposure

cve-2026-47894 - MEDIUM - Spring Cloud Config Server Native Environment Repository Exposure...

A Bootiful Podcast: Spring Boot founder and lead Phil Webb

Hi, Spring fans! In this installment I talk to Spring Boot cofounder Phil Webb who joins the show to unpack the latest Spring Boot 4.1 release, from the long-awaited Spring gRPC support and MongoDB batch starter to security, observability, service connections, and other polished improvements...