CVE-2026-77310

jackson-databind: Eager DNS resolution (SSRF) still present in InetAddress deserialization (Incomplete fix for CVE-2026-54514)

MEDIUM

5.3

CVSS Score

Published: August 24, 2026 at 07:24 PM UTC

Updated: October 12, 2026 at 09:10 PM UTC

1 product affected across 1 vendorJackson Databind

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Severity

MEDIUM5.3

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Jackson Databind · Fasterxmlmaven

90%

>= 2.0.0, < 2.18.9>= 2.19.0, < 2.21.5 >= 2.22.0, < 2.22.1 >= 3.0.0, < 3.1.5 >= 3.2.0, < 3.2.1

Affected range stops below 2.18.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.21.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.22.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.1.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.2.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM

Source: cverecord

https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-vvgp-rfg2-7rr6

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-918

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