SSRF in Java-Json-Tools Jackson-Coreutils
CVE-2026-86321
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
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-2026-86321?
- CVE-2026-86321 is a medium-severity vulnerability in Java-Json-Tools Jackson-Coreutils, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-09-07.
- How severe is CVE-2026-86321?
- Medium severity. CVSS v3 base score is 5.3 out of 10.