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CVE-2026-103249— n8n before 1.123.80, 2.39.6, and 2.40.1 Stored DOM XSS via Resource Locator

一分钟漏洞结论

影响对象
n8n-io n8n
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。

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a stored DOM cross-site scripting vulnerability in Resource Locator parameter dropdown link handling. Workflow authors can inject malicious script URLs that execute a

CVSS 7.6 · High
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一、 漏洞 CVE-2026-103249 基础信息

漏洞信息

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Vulnerability Title
n8n before 1.123.80, 2.39.6, and 2.40.1 Stored DOM XSS via Resource Locator
来源: CVE Program / CVE List V5
Vulnerability Description
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a stored DOM cross-site scripting vulnerability in Resource Locator parameter dropdown link handling. Workflow authors can inject malicious script URLs that execute arbitrary JavaScript in the editor origin when other users open the node dropdown and click the external-link icon, with the payload persisting across workflow imports and shares.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/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

厂商 产品 影响版本 CPE 订阅
n8n-io n8n 0 ~ 1.123.80 -

二、漏洞 CVE-2026-103249 的公开POC

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三、漏洞 CVE-2026-103249 的情报信息

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CVE-2026-103249 其他参考 (2)

同批安全公告 · n8n-io · 2026-10-01 · 共 16 条

CVE-2026-103248 9.0 CRITICAL n8n before 1.123.80, 2.39.6, and 2.40.1 PostgREST Filter Injection via Supabase
CVE-2026-103255 9.0 CRITICAL n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal and Query Injection via Supabase
CVE-2026-103253 8.7 HIGH n8n before 1.123.80, 2.39.6, and 2.40.1 SQL Injection via Oracle Database Drop Table
CVE-2026-103247 8.5 HIGH n8n before 1.123.80 Credential Tampering via Duplicate Node IDs
CVE-2026-103250 8.1 HIGH n8n before 1.123.80, 2.39.6, and 2.40.1 NoSQL Injection via MongoDB Chat Memory
CVE-2026-103257 7.7 HIGH n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal via n8n Node
CVE-2026-103246 7.7 HIGH n8n before 2.39.6 and 2.40.x before 2.40.1 Credential Disclosure via Node-Tool Introspecti
CVE-2026-103252 7.7 HIGH n8n before 1.123.80, 2.39.6, and 2.40.1 Information Disclosure via Credential Test Endpoin
CVE-2026-103259 7.6 HIGH n8n before 2.39.6 and 2.40.x before 2.40.1 Session Token Leak via Dynamic Credentials
CVE-2026-103251 7.1 HIGH n8n before 1.123.80, 2.39.6, and 2.40.1 Package Install Validation Bypass via PubSub
CVE-2026-103256 7.1 HIGH n8n before 2.39.6 and 2.40.x before 2.40.1 Credentials Leak via preAuthentication Hook
CVE-2026-103258 6.8 MEDIUM n8n before 2.39.6 and 2.40.x before 2.40.1 Filter Bypass via Parameter Interpolation
CVE-2026-103254 6.3 MEDIUM n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal via Resume URL Generation
CVE-2026-103245 5.3 MEDIUM n8n before 1.123.80, 2.39.6, and 2.40.1 Missing Webhook Signature Verification
CVE-2026-103260 4.0 MEDIUM n8n before 2.39.6 and 2.40.x before 2.40.1 Approval Bypass via Send and Wait Node

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-79

V. Comments for CVE-2026-103249

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