What’s Vulnerable › Vulnerabilities

CVE-2026-86319: java-json-tools json-patch Patch Operation JsonPatch.java JsonPatch.apply resource consumption

• 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 2026-09-09
• Weakness: CWE-400

Description

A vulnerability has been found in java-json-tools json-patch up to 1.13. Affected by this vulnerability is the function JsonPatch.apply of the file src/main/java/com/github/fge/jsonpatch/JsonPatch.java of the component Patch Operation Handler. The manipulation leads to resource consumption. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

• java-json-tools json-patch: 1.0, 1.1, 1.2, 1.3, 1.4, 1.5 (+8)

References

• https://github.com/java-json-tools/json-patch/
• https://github.com/java-json-tools/json-patch/issues/167
• https://vuldb.com/cve/CVE-2026-86319
• https://vuldb.com/submit/908321
• https://vuldb.com/vuln/399510
• https://vuldb.com/vuln/399510/cti

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