---
id: CVE-2026-77310
title: >-
  jackson-databind contains the general-purpose data-binding functionality and
  tree-model for Jackson Data Processor
summary: >-
  jackson-databind contains the general-purpose data-binding functionality and
  tree-model for Jackson Data Processor. Prior to versions 2.18.9, 2.21.5,
  2.22.1, 3.1.5, and 3.2.1 on their respective release lines, the
  java.net.InetAddress br…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-918
vendor: fasterxml
product: 'com.fasterxml.jackson.core:jackson-databind'
affected:
  - 'com.fasterxml.jackson.core:jackson-databind >= 2.0.0, < 2.18.9'
  - 'com.fasterxml.jackson.core:jackson-databind >= 2.19.0, < 2.21.5'
  - 'com.fasterxml.jackson.core:jackson-databind >= 2.22.0, < 2.22.1'
  - 'tools.jackson.core:jackson-databind >= 3.0.0, < 3.1.5'
  - 'tools.jackson.core:jackson-databind >= 3.2.0, < 3.2.1'
patched:
  - 'com.fasterxml.jackson.core:jackson-databind 2.18.9'
  - 'com.fasterxml.jackson.core:jackson-databind 2.21.5'
  - 'com.fasterxml.jackson.core:jackson-databind 2.22.1'
  - 'tools.jackson.core:jackson-databind 3.1.5'
  - 'tools.jackson.core:jackson-databind 3.2.1'
published: '2026-08-24'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T21:10:00.227'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77310'
references:
  - url: >-
      https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-vvgp-rfg2-7rr6
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77310'
  - url: 'https://github.com/FasterXML/jackson-databind/pull/6058'
  - url: >-
      https://github.com/FasterXML/jackson-databind/commit/2fc7bd9057dd051d7dea0e5fcad89822d0fa5ebd
  - url: >-
      https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.18.9
  - url: >-
      https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.21.5
  - url: >-
      https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.22.1
  - url: >-
      https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.1.5
  - url: >-
      https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.2.1
  - url: 'https://github.com/advisories/GHSA-vvgp-rfg2-7rr6'
tags:
  - nvd
  - ghsa
  - maven
epss: 0.00313
epssPercentile: 0.24018
aliases:
  - GHSA-vvgp-rfg2-7rr6
ecosystem: maven
ingestedAt: '2026-09-09T21:22:45.549Z'
---

## Overview

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. Prior to versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1 on their respective release lines, the java.net.InetAddress branch of FromStringDeserializer.Std._deserialize() calls InetAddress.getByName() on attacker-controlled input, causing eager DNS resolution during deserialization and enabling DNS-based server-side request forgery and internal-host enumeration. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-77310)

Affected packages:

- `com.fasterxml.jackson.core:jackson-databind >= 2.0.0, < 2.18.9`
- `com.fasterxml.jackson.core:jackson-databind >= 2.19.0, < 2.21.5`
- `com.fasterxml.jackson.core:jackson-databind >= 2.22.0, < 2.22.1`
- `tools.jackson.core:jackson-databind >= 3.0.0, < 3.1.5`
- `tools.jackson.core:jackson-databind >= 3.2.0, < 3.2.1`

Patched in:

- `com.fasterxml.jackson.core:jackson-databind 2.18.9`
- `com.fasterxml.jackson.core:jackson-databind 2.21.5`
- `com.fasterxml.jackson.core:jackson-databind 2.22.1`
- `tools.jackson.core:jackson-databind 3.1.5`
- `tools.jackson.core:jackson-databind 3.2.1`

Source: https://github.com/advisories/GHSA-vvgp-rfg2-7rr6