CVE-2026-86062— LightRAG: Stored Cross-Site Scripting (XSS) in the LightRAG WebUI chat/answer renderer via ingested content
一分钟漏洞结论
影响对象
HKUDS LightRAG
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。
LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, lightrag_webui/src/components/retrieval/ChatMessage.tsx renders answer and thinking content with react-markdown, rehypeRaw, and skipHtml=false without an HTML sanitizer. An attac
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一、 漏洞 CVE-2026-86062 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
LightRAG: Stored Cross-Site Scripting (XSS) in the LightRAG WebUI chat/answer renderer via ingested content
来源: CVE Program / CVE List V5
Vulnerability Description
LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, lightrag_webui/src/components/retrieval/ChatMessage.tsx renders answer and thinking content with react-markdown, rehypeRaw, and skipHtml=false without an HTML sanitizer. An attacker who can add a document can store raw HTML that is returned through the query path and rendered as active content by MessageMarkdown. A user who later retrieves the content can execute attacker-controlled JavaScript through elements such as an iframe srcdoc; the additional Mermaid securityLevel: loose rendering path also injects generated SVG through innerHTML. The script runs in the LightRAG WebUI origin and can read the API token in localStorage and perform API actions as the victim. This issue is fixed in version 1.5.5.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-86062 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
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未找到公开 POC。
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CVE-2026-86062 其他参考 (4)
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Release v1.5.5 · HKUDS/LightRAG · GitHub x_refsource_MISC
同批安全公告 · HKUDS · 2026-09-22 · 共 5 条
| CVE-2026-85734 | 9.1 CRITICAL | LightRAG: No Rate Limiting on /login Endpoint Allows Brute-Force Attacks |
| CVE-2026-85740 | 7.1 HIGH | LightRAG: SSRF via IPv6-transition address bypass (NAT64, IPv4-compatible, 6to4) of the na |
| CVE-2026-85725 | 5.9 MEDIUM | LightRAG: Plaintext Passwords Compared Without Constant-Time Function |
| CVE-2026-85709 | 5.3 MEDIUM | LightRAG: Sensitive Information Exposure Through Raw Exception Messages in API Error Respo |
IV. Related Vulnerabilities
Same product: LightRAG
-
CVE-2026-85740
LightRAG: SSRF via IPv6-transition address bypass (NAT64, IP -
CVE-2026-85734
LightRAG: No Rate Limiting on /login Endpoint Allows Brute-F -
CVE-2026-85725
LightRAG: Plaintext Passwords Compared Without Constant-Time -
CVE-2026-85709
LightRAG: Sensitive Information Exposure Through Raw Excepti -
CVE-2026-61808
Data Intelligence Lab@HKU LightRAG 授权问题漏洞
Same vendor: HKUDS
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CVE-2026-85740
LightRAG: SSRF via IPv6-transition address bypass (NAT64, IP -
CVE-2026-85734
LightRAG: No Rate Limiting on /login Endpoint Allows Brute-F -
CVE-2026-85725
LightRAG: Plaintext Passwords Compared Without Constant-Time -
CVE-2026-85709
LightRAG: Sensitive Information Exposure Through Raw Excepti -
CVE-2026-92576
HKUDS nanobot 0.3.0前服务器端请求伪造漏洞
Same weakness: CWE-79
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CVE-2026-75510
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CVE-2026-95661
MISP Reflected Cross-Site Scripting in Attribute Histogram v
V. Comments for CVE-2026-86062
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