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CVE-2026-82803— armink struct2json JSON Deserialization s2jdef.h S2J_STRUCT_GET_string_ELEMENT null pointer dereference

Quick assessment

Affected
armink struct2json
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 armink 的 struct2json 1.0 版本中发现了一个安全漏洞。该漏洞影响组件“JSON 反序列化”中库文件 里的函数 。当参数 被操纵时，会导致空指针解引用（null pointer dereference）。该攻击可能通过远程方式发起。此漏洞利用方法已公开披露，并可能被实际利用。厂商早前已就该披露事宜被联系，但未作出任何回应。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1205 · Traffic Signaling

Affected Version Matrix 1

VendorProduct Version RangeStatus
armink struct2json 1.0 affected
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I. Basic Information for CVE-2026-82803

Vulnerability Information
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Vulnerability Title
armink struct2json JSON Deserialization s2jdef.h S2J_STRUCT_GET_string_ELEMENT null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in armink struct2json 1.0. This affects the function S2J_STRUCT_GET_string_ELEMENT in the library struct2json/inc/s2jdef.h of the component JSON Deserialization. The manipulation of the argument valuestring leads to null pointer dereference. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
armink struct2json 1.0 cpe:2.3:a:armink:struct2json:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82803

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III. Intelligence Information for CVE-2026-82803

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Patches & Fixes for CVE-2026-82803 (1)

Proof of Concept for CVE-2026-82803 (1)

Other References for CVE-2026-82803 (3)

IV. Related Vulnerabilities

Same weakness: CWE-476

V. Comments for CVE-2026-82803

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