CVE-2026-54514
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
71/100
Published: 2026-06-23
Modified: 2026-10-25
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
Low
I:
None
A:
None
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.
Weakness Classification (1)
Affected Software (3)
| Vendor | Product | Version |
|---|---|---|
| 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 |
References & Advisories (3)
Vendor Advisory
Patch
Issue Tracking
Patch