java-json-tools jackson-coreutils URL Validation JsonLoader.java JsonLoader.fromURL server-side request forgery
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| java-json-tools | jackson-coreutils | 2.0 | — | No fix listed | CNA |
- jackson-coreutils Vendorjava-json-tools Affected 2.0 Fixed in — No fix listed CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:java-json-tools:jackson-coreutils:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:java-json-tools:jackson-coreutils:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Fuse 7 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
| Red Hat Single Sign-On 7 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-86321
- 2026-10-03 Alias added: GHSA-rrq3-h776-pmxg
- 2026-10-04 EPSS moved to the 50th–90th percentile
References
More java-json-tools vulnerabilities
- TI-2026-59204 Uncontrolled resource consumption in java-json-tools jackson-coreutils CVSS 4.0MEDIUM 6.9
- TI-2026-59101 java-json-tools json-patch Patch Operation JsonPatch.java JsonPatch.apply resource consumption CVSS 4.0MEDIUM 6.9
- TI-2026-59100 java-json-tools json-patch JsonMergePatchDeserializer.java JsonMergePatch.fromJson stack-based overflow CVSS 4.0MEDIUM 6.9
- TI-2026-59202 java-json-tools jackson-coreutils JacksonUtils.java BigDecimal.toPlainString resource consumption CVSS 4.0MEDIUM 6.9
- TI-2026-59203 java-json-tools json-patch Copy Move Operations CopyOperation.java MoveOperation.apply access control CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-86321 · CVE Program
- CVE-2026-86321 · NVD
- FIRST EPSS
- GHSA-rrq3-h776-pmxg · GitHub Advisory Database · CC BY 4.0
- CVE-2026-86321 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences