CVE-2026-86321

java-json-tools jackson-coreutils URL Validation JsonLoader.java JsonLoader.fromURL server-side request forgery

MEDIUM
5.3
CVSS Score
Published: September 7, 2026 at 03:00 PM UTC
Updated: September 8, 2026 at 01:31 PM UTC
1 product affected across 1 vendorJackson Coreutils

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.7%
SSVC
PoC

Description

A vulnerability was found in java-json-tools jackson-coreutils 2.0. Affected by this issue is the function JsonLoader.fromURL of the file src/main/java/com/github/fge/jackson/JsonLoader.java of the component URL Validation. The manipulation results in server-side request forgery. It is possible to launch the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected

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

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 (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/399511
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/399511/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-86321
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/908323

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

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

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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