Vulnerability · Published Aug 27, 2026 · Assigned by vmware
CVE-2026-47885Spring Framework maxPartSize Ignored in PartEventHttpMessageReader
High 7.5
In plain English
A high-severity resource allocation without limits in Spring Framework from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 69.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:26.04:LTS | libspring-java | no fix listed | UBUNTU-CVE-2026-47885 |
| Ubuntu:26.10 | libspring-java | no fix listed | UBUNTU-CVE-2026-47885 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Framework | 7.0.0 – through 7.0.86.2.0 – through 6.2.196.1.0 – through 6.1.28 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N