CVE-2026-91777 Security Details

CVE ID

CVE-2026-91777

CWE

N/A

CVE Description

Jackson-databind - Denial of Service (DoS)

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/deser/std/CollectionDeserializer$CollectionReferringAccumulator.add(Ljava/lang/Object;)V

JVMVulnerable params: 0

com/fasterxml/jackson/databind/deser/std/CollectionDeserializer$CollectionReferringAccumulator.handleUnresolvedReference(Lcom/fasterxml/jackson/databind/deser/UnresolvedForwardReference;)Lcom/fasterxml/jackson/databind/deser/impl/ReadableObjectId$Referring;

JVMVulnerable params: 0

com/fasterxml/jackson/databind/deser/std/CollectionDeserializer$CollectionReferringAccumulator.resolveForwardReference(Ljava/lang/Object;Ljava/lang/Object;)V

JVMVulnerable params: 0, 1

com/fasterxml/jackson/databind/deser/std/MapDeserializer$MapReferringAccumulator.handleUnresolvedReference(Lcom/fasterxml/jackson/databind/deser/UnresolvedForwardReference;Ljava/lang/Object;)Lcom/fasterxml/jackson/databind/deser/impl/ReadableObjectId$Referring;

JVMVulnerable params: 0

com/fasterxml/jackson/databind/deser/std/MapDeserializer$MapReferringAccumulator.put(Ljava/lang/Object;Ljava/lang/Object;)V

JVMVulnerable params: 0

com/fasterxml/jackson/databind/deser/std/MapDeserializer$MapReferringAccumulator.resolveForwardReference(Ljava/lang/Object;Ljava/lang/Object;)V

JVMVulnerable params: 0, 1

tools/jackson/databind/deser/jdk/CollectionDeserializer$CollectionReferringAccumulator.add(Ljava/lang/Object;)V

JVMVulnerable params: 0

tools/jackson/databind/deser/jdk/CollectionDeserializer$CollectionReferringAccumulator.handleUnresolvedReference(Ltools/jackson/databind/deser/UnresolvedForwardReference;)Ltools/jackson/databind/deser/ReadableObjectId$Referring;

JVMVulnerable params: 0

tools/jackson/databind/deser/jdk/CollectionDeserializer$CollectionReferringAccumulator.resolveForwardReference(Ltools/jackson/databind/DeserializationContext;Ljava/lang/Object;Ljava/lang/Object;)V

JVMVulnerable params: 0, 1, 2

Affected Ecosystems

affected

Source

National Vulnerability Database

References

GitHub · PR #6204PROJECT