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GHSA-5843-p793-ghmm

Spring Framework DoS with Multipart Temp Files in WebFlux

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-22740

Packages

EcosystemPackageAffectedFixed in
Maven org.springframework:spring-webflux >= 7.0.0, < 7.0.7 7.0.7
Maven org.springframework:spring-webflux >= 6.2.0, < 6.2.18 6.2.18
Maven org.springframework:spring-webflux >= 6.1.0, <= 6.1.26 no fix listed
Maven org.springframework:spring-webflux <= 5.3.47 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

A WebFlux server application that processes multipart requests creates temp files for parts larger than 10 K. Under some circumstances, temp files may remain not deleted after the request is fully processed. This allows an attacker to consume available disk space. Older, unsupported versions are also affected.

References

External links from the advisory. They lead to third-party sites.