CVE-2026-47885
published 2026-08-27CVE-2026-47885: The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set to -1. Spring Framework 7.0.0 - 7.0.8…
PriorityP339high7.5CVSS 3.1
AVNACLPRNUINSUCNIHAN
EPSS
0.37%
29.2th percentile
The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set to -1.
Spring Framework 7.0.0 - 7.0.8
Spring Framework 6.2.0 - 6.2.19
Spring Framework 6.1.0 - 6.1.28
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| spring | spring_framework | 6.1.0 – 6.1.28 | — |
| spring | spring_framework | 6.2.0 – 6.2.19 | — |
| spring | spring_framework | 7.0.0 – 7.0.8 | — |
| vmware | spring_framework | >= 6.1.0 < 6.1.29 | 6.1.29 |
| vmware | spring_framework | >= 6.2.0 < 6.2.20 | 6.2.20 |
| vmware | spring_framework | >= 7.0.0 < 7.0.8.1 | 7.0.8.1 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
vendor_redhat7.5HIGH
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Red Hat
org.springframework/spring-webflux: Spring WebFlux: Denial of Service via ignored maxPartSize limit
vendor_redhat·2026-08-27·CVSS 7.5
CVE-2026-47885 [HIGH] CWE-770 org.springframework/spring-webflux: Spring WebFlux: Denial of Service via ignored maxPartSize limit
org.springframework/spring-webflux: Spring WebFlux: Denial of Service via ignored maxPartSize limit
The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set to -1.
Spring Framework 7.0.0 - 7.0.8
Spring Framework 6.2.0 - 6.2.19
Spring Framework 6.1.0 - 6.1.28
A flaw was found in Spring WebFlux. The PartEventHttpMessageReader in Spring WebFlux does not enforce the `maxPartSize` limit when `maxInMemorySize` is set to -1. This oversight could allow a remote attacker to send excessively large multipart requests, potentially leading to resource exhaustion and a Denial of Service (DoS) condition.
Statement: This Important denial-of-service flaw in Spring WebFlux, as utilized in Red Hat JBoss Fuse, arises when the `maxInMemorySize` prop
GHSA
The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set to -1.
ghsa_unreviewed·2026-08-27
CVE-2026-47885 [HIGH] CWE-770 The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set to -1.
The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set to -1.
Spring Framework 7.0.0 - 7.0.8
Spring Framework 6.2.0 - 6.2.19
Spring Framework 6.1.0 - 6.1.28
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-08-27
Published