Spring Framework security vulnerabilities

The Spring Framework is an application development framework developed by Spring in a open-source manner. Versions of the Spring Framework such as 7.0.0 and earlier, 6.2.0 and earlier, 6.1.0 and earlier, and 5.3.0 and earlier contain security vulnerabilities. These vulnerabilities stem from the...

Spring Framework Resource Management Vulnerability

The Spring Framework is an application development framework developed by Spring in open source. Vulnerabilities related to resource management exist in versions 7.0.0 to 7.0.7, 6.2.0 to 6.2.18, 6.1.0 to 6.1.27, and 5.3.0 to 5.3.48 of the Spring Framework. These vulnerabilities may lead to...

CVE-2026-41854

Due to incorrect host parsing, applications that rely on UriComponentsBuilder to parse and validate an externally provided URL string may be exposed to a server-side request forgery SSRF attack. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18...

CVE-2026-41855

In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization. Affect...

CVE-2026-41839

A WebFlux application with a compromised subdomain for example, compromised via cross-site scripting XSS is vulnerable to an escalation attack exchanging a known session ID for that of an authenticated user. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0...

CVE-2026-41851

Applications which accept user-supplied Spring Expression Language SpEL expressions may be vulnerable to a Denial of Service DoS attack if the evaluation of a SpEL expression triggers unbounded cache growth. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0...

CVE-2026-41853

Spring MVC and WebFlux applications are vulnerable to Multipart request smuggling attacks. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48...

CVE-2026-41840

Spring WebFlux applications are vulnerable to Denial of Service DoS attacks when processing multipart requests. Affected versions: Spring Framework 7.0.0 through 7.0.7, 6.2.0 through 6.2.18, 6.1.0 through 6.1.27, 5.3.0 through 5.3.48...

PT-2026-68943

Due to incorrect host parsing, applications that rely on UriComponentsBuilder to parse and validate an externally provided URL string may be exposed to a server-side request forgery SSRF attack. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18...

CVE-2026-41839: Session Fixation

A WebFlux application with a compromised subdomain for example, compromised via cross-site scripting XSS is vulnerable to an escalation attack exchanging a known session ID for that of an authenticated user. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0...

CVE-2026-41853: Inconsistent Interpretation of HTTP Requests

Spring MVC and WebFlux applications are vulnerable to Multipart request smuggling attacks. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48...

CVE-2026-41855: Deserialization of Untrusted Data

In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization. Affect...

Linux Distros Unpatched Vulnerability : CVE-2026-41853

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Spring MVC and WebFlux applications are vulnerable to Multipart request smuggling attacks. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 throug...

Linux Distros Unpatched Vulnerability : CVE-2026-41848

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Applications may be vulnerable to a Regular Expression Denial of Service ReDoS attack if an attacker is able to provide a pattern which is then directly or...

Linux Distros Unpatched Vulnerability : CVE-2026-41851

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Applications which accept user-supplied Spring Expression Language SpEL expressions may be vulnerable to a Denial of Service DoS attack if the evaluation of a...

CVE-2026-41840: Missing Release of Memory after Effective Lifetime

Spring WebFlux applications are vulnerable to Denial of Service DoS attacks when processing multipart requests. Affected versions: Spring Framework 7.0.0 through 7.0.7, 6.2.0 through 6.2.18, 6.1.0 through 6.1.27, 5.3.0 through 5.3.48...

Linux Distros Unpatched Vulnerability : CVE-2026-41846

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Spring MVC applications which accept user-supplied values in the cssClass, cssErrorClass, or cssStyle attributes of JSP form tags allow arbitrary HTML/JavaScrip...

Linux Distros Unpatched Vulnerability : CVE-2026-41847

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL. Affected versions: Spring Framework 5.3.0 through 5.3.48...

PT-2026-47658

Name of the Vulnerable Software and Affected Versions Spring Framework versions 5.3.0 through 5.3.48 Description Spring WebFlux applications may be subject to a security bypass when utilizing the Kotlin Router DSL. Recommendations At the moment, there is no information about a newer version that...

CVE-2026-41849

An integer overflow vulnerability exists in the evaluation logic of the Spring Expression Language SpEL. An attacker can exploit this by supplying a specially crafted SpEL expression that triggers excessive resource consumption, resulting in a Denial of Service DoS. Affected versions: Spring...