CVE-2026-22745

NameCVE-2026-22745
DescriptionSpring 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libspring-java (PTS)bullseye4.3.30-1fixed
bookworm4.3.30-2fixed
trixie4.3.30-3fixed
forky, sid4.3.30-4fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libspring-javasource(unstable)(not affected)

Notes

- libspring-java <not-affected> (Windows-specific)
https://spring.io/security/cve-2026-22745

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