What’s Vulnerable › Vulnerabilities

CVE-2026-86321: java-json-tools jackson-coreutils URL Validation JsonLoader.java JsonLoader.fromURL server-side request forgery

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-07 · updated 2026-09-08
• Weakness: CWE-918

Description

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.

Affected products

• java-json-tools jackson-coreutils: 2.0

References

• https://github.com/java-json-tools/jackson-coreutils/
• https://github.com/java-json-tools/jackson-coreutils/issues/64
• https://vuldb.com/cve/CVE-2026-86321
• https://vuldb.com/submit/908323
• https://vuldb.com/vuln/399511
• https://vuldb.com/vuln/399511/cti

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