CVE-2026-22745

Spring MVC and WebFlux applications are vulnerable to Denial of Service attacks when resolving static resources.

More precisely, an application can be vulnerable when all the following are true:

• the application is using Spring MVC or Spring WebFlux
• the application is serving static resources from the file system
• the application is running on a Windows platform

When all the conditions above are met, the attacker can send malicious requests that are slow to resolve and that can keep HTTP connections in use. This can cause a Denial of Service on the application.

Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service. Typical impact: denial of service.

CVE-2026-22745 has a CVSS score of 5.3 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (7.0.7, 6.2.18); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2026-22745? CVE-2026-22745 is a medium-severity uncontrolled resource consumption vulnerability in org.springframework:spring-webflux (maven), affecting versions >= 7.0.0, <= 7.0.6. It is fixed in 7.0.7, 6.2.18. Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service.
2. How severe is CVE-2026-22745? CVE-2026-22745 has a CVSS score of 5.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by CVE-2026-22745?
   • org.springframework:spring-webflux (maven) (versions >= 7.0.0, <= 7.0.6)
   • org.springframework:spring-webmvc (maven) (versions >= 7.0.0, <= 7.0.6)
4. Is there a fix for CVE-2026-22745? Yes. CVE-2026-22745 is fixed in 7.0.7, 6.2.18. Upgrade to this version or later.
5. Is CVE-2026-22745 exploitable, and should I be worried? Whether CVE-2026-22745 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-22745 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-22745?
   • Upgrade org.springframework:spring-webflux to 7.0.7 or later
   • Upgrade org.springframework:spring-webflux to 6.2.18 or later
   • Upgrade org.springframework:spring-webmvc to 7.0.7 or later
   • Upgrade org.springframework:spring-webmvc to 6.2.18 or later