Medium [CVE-2026-86321] java-json-tools jackson-coreutils: Server-Side Request Forgery via JsonLoader.fromURL
This medium-severity Red Hat Linux advisory covers CVE-2026-86321 affecting Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 7, Red Hat JBoss Enterprise Application Platform 8.
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Summary
A flaw was found in jackson-coreutils. This server-side request forgery (SSRF) vulnerability occurs when applications use the `JsonLoader.fromURL` function with untrusted input.
A remote attacker can exploit this to induce the server to make arbitrary requests. This could lead to unauthorized information disclosure or access to internal network resources.
The impact is considered Moderate due to the need for an application to expose this functionality to untrusted input. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
Weakness: CWE-918. Affected Red Hat products: Red Hat Fuse 7; Red Hat JBoss Enterprise Application Platform 7; Red Hat JBoss Enterprise Application Platform 8; Red Hat JBoss Enterprise Application Platform Expansion Pack; Red Hat Single Sign-On 7.
Will not fix / out of support: Red Hat Fuse 7; Red Hat JBoss Enterprise Application Platform 7; Red Hat Single Sign-On 7. Red Hat does not currently list a fixing RHSA for this CVE.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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