Resource exhaustion in Java-Json-Tools Jackson-Coreutils
CVE-2026-86511
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.
Vulnerability class: DoS (Denial of Service)
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Java-json-tools Jackson-coreutils — versions 2.0
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-86511?
- CVE-2026-86511 is a medium-severity vulnerability in Java-Json-Tools Jackson-Coreutils, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-09-08.
- How severe is CVE-2026-86511?
- Medium severity. CVSS v3 base score is 5.3 out of 10.