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CVE-2026-104183— stream-json: Prototype pollution: Assembler writes this.current[this.key] on plain objects

一分钟漏洞结论

影响对象
uhop stream-json
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.6.0, Assembler materializes object properties with plain assignment, so an input key named __proto__ invokes the inherited setter and

CVSS 5.1 · Medium
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一、 漏洞 CVE-2026-104183 基础信息

漏洞信息

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Vulnerability Title
stream-json: Prototype pollution: Assembler writes this.current[this.key] on plain objects
来源: CVE Program / CVE List V5
Vulnerability Description
stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.6.0, Assembler materializes object properties with plain assignment, so an input key named __proto__ invokes the inherited setter and causes parsed object prototype replacement instead of creating an own data property. Applications that make authorization or feature decisions from inherited values can therefore consume attacker-controlled properties, and a null prototype can disrupt code that expects Object.prototype methods. The researcher treats parsing untrusted JSON as part of the project contract, while the maintainer states that documented inputs are locally owned dumps, exports, or logs and characterizes the attack vector as local. The global Object.prototype is not polluted. This issue is fixed in version 3.6.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
来源: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
uhop stream-json < 3.6.0 -

二、漏洞 CVE-2026-104183 的公开POC

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三、漏洞 CVE-2026-104183 的情报信息

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CVE-2026-104183 其他参考 (3)

IV. Related Vulnerabilities

Same product: stream-json
Same vendor: uhop
Same weakness: CWE-1321

V. Comments for CVE-2026-104183

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