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CVE-2026-54514

jackson-databind: InetSocketAddress deserialization triggers eager DNS resolution (SSRF)

Published: Jun 23, 2026Updated: Jun 27, 2026 Sources: CVE List NVDCWE-918
5.3MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 87.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-918

Affected Products

FasterXML
oss-project·NLaka jackson-core, jackson-databind, jackson-dataformat-xml
jackson-databindLibraryLibrary
OSS Libraries / generic-library
and 1 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/FasterXML/jackson-databind/commit/1f5a1037b1e9e05920e755cb35f198bcd46667e4
github.com
https://github.com/FasterXML/jackson-databind/pull/5951
github.com
https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-hgj6-7826-r7m5
github.com

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