jackson-databind: InetSocketAddress deserialization triggers eager DNS resolution (SSRF)_CVE-2026-54514

5.3 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Basic Information

ID CVE-2026-54514

Source GitHub_M

Published Jun 23, 2026 at 20:51

Modified Jun 23, 2026 at 20:52

Affected Product

Vendor FasterXML

Product jackson-databind

Version >= 2.0.0, < 2.18.8

Affected Versions FasterXML jackson-databind >= 2.0.0, < 2.18.8
FasterXML jackson-databind >= 2.19.0, < 2.21.4
FasterXML jackson-databind >= 3.0.0, < 3.1.4

CWE Classification

CWE-918

References

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    "published": "2026-06-23T20:51:50.612Z",
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