Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from Vendor (vmware).
CVSS VectorVendor: vmware
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2Blast Radius
ecosystem impact- 6 maven packages depend on org.springframework:spring-webflux (5 direct, 1 indirect)
- 21 maven packages depend on org.springframework:spring-webmvc (13 direct, 8 indirect)
Ecosystem-wide dependent count for version 7.0.0 and other introduced versions.
DescriptionCVE.org
Spring MVC and WebFlux applications are vulnerable to Denial of Service (DoS) attacks when resolving static resources.
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.
Articles & Coverage 1
AnalysisAI
Denial of service in Spring Framework's Spring MVC and WebFlux static resource resolution allows remote unauthenticated attackers to exhaust application resources, affecting versions 5.3.0-5.3.48, 6.1.0-6.1.27, 6.2.0-6.2.18, and 7.0.0-7.0.7. The CVSS 7.5 score reflects high-impact availability damage over the network with no privileges or user interaction, and at time of analysis no public exploit identified at time of analysis. The flaw was reported by VMware (Spring's maintainer) and is tracked under the official Spring Security advisory.
Technical ContextAI
Spring Framework is the foundational Java application framework underpinning both Spring MVC (Servlet stack) and Spring WebFlux (reactive stack) used to build a large share of enterprise Java web applications. Both stacks include a static resource handling subsystem (e.g., ResourceHttpRequestHandler / ResourceWebHandler) that maps incoming HTTP request paths to files on the classpath or filesystem, performing path resolution, encoding handling, and caching. The CWE-400 (Uncontrolled Resource Consumption) classification indicates the resolver performs work whose cost is not properly bounded relative to attacker-controlled input, allowing a malicious request to consume disproportionate CPU, memory, threads, or I/O. Because the CPE covers spring:spring_framework across multiple major branches simultaneously (5.3, 6.1, 6.2, 7.0), the underlying defect is in shared resource-resolution logic carried across releases rather than a regression in a single line.
RemediationAI
Patch available per vendor advisory at https://spring.io/security/cve-2026-41842 - upgrade Spring Framework to the first fixed release on your supported branch (the advisory lists fixed versions above 7.0.7, 6.2.18, 6.1.27, and 5.3.48; consult the advisory for the exact build number for your branch as the input does not provide a single canonical fix version). For Spring Boot users, bump spring-boot-dependencies / spring-framework.version to pull in the patched framework rather than overriding individual modules. If patching cannot be completed immediately, compensating controls include placing a reverse proxy or WAF in front of the application to rate-limit and bound request sizes on the static resource paths (typically /resources/, /static/, /webjars/**, or any handler registered via addResourceHandlers), restricting which paths are exposed by ResourceHandlerRegistry to only the minimum needed (with the trade-off that legitimately served assets must be relocated), and disabling or fronting static resource serving with a CDN/static web server such as nginx so the Spring application no longer resolves these requests (trade-off: deployment topology change). Monitor for spikes in handler thread occupancy and request latency on static paths until patched.
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Same weakness CWE-400 – Uncontrolled Resource Consumption
View allSame technique Denial Of Service
View allVendor StatusVendor
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-35330
GHSA-x23c-287f-qqv5