CVE-2026-47891 Security Details

CVE ID

CVE-2026-47891

CWE

CWE-770

CVE Description

A Spring WebFlux application that relies on the Aalto XML processor to parse XML input does not correctly enforce the maxInMemorySize limit. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.25.RELEASE and earlier

Published

Aug 20, 2026

CVSS Score & Severity

6.9Medium

CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS Score

0.522%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

org/springframework/http/codec/xml/XmlEventDecoder$AaltoDataBufferToXmlEvent.apply(Lorg/springframework/core/io/buffer/DataBuffer;)Ljava/util/List;

JVM

org/springframework/http/codec/xml/XmlEventDecoder$AaltoDataBufferToXmlEvent.checkDepthAndResetByteCount(Ljavax/xml/stream/events/XMLEvent;)V

JVM

Affected Ecosystems

affected

Source

National Vulnerability Database

References

spring.ioPROJECT