CVE-2026-86511

java-json-tools jackson-coreutils JacksonUtils.java BigDecimal.toPlainString resource consumption

MEDIUM
5.3
CVSS Score
Published: September 8, 2026 at 02:00 AM UTC
Updated: September 28, 2026 at 11:10 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 vulnerability is the function BigDecimal.toPlainString of the file src/main/java/com/github/fge/jackson/JacksonUtils.java. Performing a manipulation results in resource consumption. The attack may be initiated 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/399664
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/399664/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-86511
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/908322

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

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

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-400CWE-404

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