CVE-2026-54514 Security Details

CVE ID

CVE-2026-54514

CWE

CWE-918

CVE Description

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.0.0 until 2.18.8, 2.21.4, and 3.1.4, JDKFromStringDeserializer constructed InetSocketAddress with new InetSocketAddress(host, port), which performs eager DNS name resolution for hostname inputs at deserialization time. An application that binds untrusted JSON into a type containing an InetSocketAddress field issues an attacker-chosen DNS query during readValue, before any application-level validation or connect logic. The fix uses InetSocketAddress.createUnresolved(host, port), deferring DNS to an explicit connect. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.

Published

Jun 16, 2026

CVSS Score & Severity

6.9Medium

CVSS Vector

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

EPSS Score

0.368%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

com/fasterxml/jackson/databind/deser/std/FromStringDeserializer$Std._inetSocketAddress(Ljava/lang/String;I)Ljava/net/InetSocketAddress;

JVM

com/fasterxml/jackson/databind/deser/std/InetSocketAddressDeserializer._deserialize(Ljava/lang/String;Lcom/fasterxml/jackson/databind/DeserializationContext;)Ljava/net/InetSocketAddress;

JVM

tools/jackson/databind/deser/jdk/JDKFromStringDeserializer._inetSocketAddress(Ljava/lang/String;I)Ljava/net/InetSocketAddress;

JVM

Affected Ecosystems

affected

Source

National Vulnerability Database

References

GitHub · FasterXML/jackson-databindPROJECT