CVE-2026-91776 Security Details

CVE ID

CVE-2026-91776

CWE

N/A

CVE Description

Jackson-databind - Unbounded growth of type id cache in TypeDeserializer

Published

Sep 15, 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%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

com/fasterxml/jackson/databind/jsontype/impl/TypeDeserializerBase._findDeserializer(Lcom/fasterxml/jackson/databind/DeserializationContext;Ljava/lang/String;)Lcom/fasterxml/jackson/databind/JsonDeserializer;

JVMVulnerable params: 0, 1

tools/jackson/databind/jsontype/impl/TypeDeserializerBase._findDeserializer(Ltools/jackson/databind/DeserializationContext;Ljava/lang/String;)Ltools/jackson/databind/ValueDeserializer;

JVMVulnerable params: 0, 1

Affected Ecosystems

affected

Source

National Vulnerability Database

References

GitHub · PR #6203PROJECT