Privilege escalation in Java-Json-Tools Json-Patch
CVE-2026-86512
A vulnerability was identified in java-json-tools json-patch up to 1.13. This affects the function CopyOperation.apply/MoveOperation.apply of the file src/main/java/com/github/fge/jsonpatch/CopyOperation.java of the component Copy Move Operations. The manipulation leads to improper access controls. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Java-json-tools Json-patch — versions 1.0, 1.1, 1.10
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, patch)
- cna@vuldb.com (product, patch)
Frequently asked questions
- What is CVE-2026-86512?
- CVE-2026-86512 is a medium-severity vulnerability in Java-Json-Tools Json-Patch, classified under Incorrect Privilege Assignment. CVSS score: 6.3/10. Published 2026-09-08.
- How severe is CVE-2026-86512?
- Medium severity. CVSS v3 base score is 6.3 out of 10.