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CVE-2026-22740

Spring Framework DoS with Multipart Temp Files in WebFlux

CVSS 6.5 MEDIUMEPSS 0.3%CWE-400
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.5EPSS 0.3%KEV nãoPoC Nuclei Metasploit Patch
Lifecycle
29 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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