What’s Vulnerable › Vulnerabilities
CVE-2026-47885: Spring Framework maxPartSize Ignored in PartEventHttpMessageReader
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-27 · updated 2026-09-10
- Weakness: CWE-770
Description
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 products
- Spring Framework: from 6.1.0 before 6.1.29; from 6.2.0 before 6.2.20; from 7.0.0 before 7.0.8.1 — fixed in 6.1.29, 6.2.20, 7.0.8.1
- Spring Framework: from 7.0.0 through 7.0.8; from 6.2.0 through 6.2.19; from 6.1.0 through 6.1.28
How to fix
Upgrade to a fixed version: Spring Framework 6.1.29, 6.2.20, 7.0.8.1. Check the vendor advisory for mitigations.
References
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