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)

VendorProductVersion
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

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploitation Probability

0.37%
Raw Score 0.003680
Percentile 30.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00368
2026-10-28
0.00368

Intelligence Sources

nvd ref →