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CVE-2026-78181— ractivejs ractive Keypath Ractive#set prototype pollution

Quick assessment

Affected
ractivejs ractive
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Ractive.js（版本低于 1.4.4）中发现了一个漏洞，影响的是组件 Keypath Handler 中的 Ractive#set 函数。执行恶意操纵可能导致对对象原型属性的控制不当修改。攻击者可远程发起利用。该漏洞的利用代码已公开，可能被用于实施攻击。项目方已通过问题报告早期收到该漏洞信息，但至今未作回应。

CVSS 7.3 · High
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I. Basic Information for CVE-2026-78181

Vulnerability Information
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Vulnerability Title
ractivejs ractive Keypath Ractive#set prototype pollution
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in ractivejs ractive up to 1.4.4. Impacted is the function Ractive#set of the component Keypath Handler. Executing a manipulation can lead to improperly controlled modification of object prototype attributes. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ractivejs ractive 1.4.0 cpe:2.3:a:ractivejs:ractive:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-78181

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8487 chars
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III. Intelligence Information for CVE-2026-78181

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Vendor Advisories for CVE-2026-78181 (1)

Other References for CVE-2026-78181 (4)

IV. Related Vulnerabilities

Same weakness: CWE-1321

V. Comments for CVE-2026-78181

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