java-json-tools json-patch up to 1.13 JsonMergePatchDeserializer.java JsonMergePatch.fromJson stack-based overflow

Summaryinfo

A vulnerability was found in java-json-tools json-patch up to 1.13. It has been classified as problematic. Affected by this vulnerability is the function JsonMergePatch.fromJson of the file JsonMergePatchDeserializer.java. The manipulation leads to stack-based overflow. This vulnerability is traded as CVE-2026-86318. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in java-json-tools json-patch up to 1.13. It has been rated as problematic. This issue affects the function JsonMergePatch.fromJson of the file JsonMergePatchDeserializer.java. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-86318. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Programming Language Software

Vendor

• java-json-tools

Name

• json-patch

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13

Website

• Product: https://github.com/java-json-tools/json-patch/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Exploitinginfo

Threat Intelligenceinfo

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Timelineinfo

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Entryinfo

Submitinfo

Accepted

• Submit #908319: java-json-tools json-patch 1.13 Stack Overflow DoS via Uncontrolled Recursion (by York Shen - Yong Shen - PayPal Cyber Security Team)

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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