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CVE-2026-75511— Novu: Server-Side Request Forgery (SSRF) via Chat Provider Webhook URLs

一分钟漏洞结论

影响对象
novuhq novu
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。

Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu accepts chat webhook URLs from subscriber credentials.webhookUrl, channel endpoint endpoint.url, event payload.webhookUrl, and event overrides.webhookUrl, then pass

CVSS 5.3 · Medium
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一、 漏洞 CVE-2026-75511 基础信息

漏洞信息

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Vulnerability Title
Novu: Server-Side Request Forgery (SSRF) via Chat Provider Webhook URLs
来源: CVE Program / CVE List V5
Vulnerability Description
Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu accepts chat webhook URLs from subscriber credentials.webhookUrl, channel endpoint endpoint.url, event payload.webhookUrl, and event overrides.webhookUrl, then passes the selected endpoint.url through send-message-chat.usecase.ts to raw HTTP requests in the Slack, Discord, Mattermost, Microsoft Teams, Grafana On-Call, Ryver, Rocket.Chat, GetStream, and Zulip providers. An authenticated user can supply an internal or otherwise restricted destination because these paths do not apply normalizeOutboundHttpUrl, assertSafeOutboundUrl, or the DNS-pinned safeOutboundJsonRequest protection used by the generic webhook providers. The Novu worker can consequently issue attacker-directed POST requests to internal network services and cause interactions or actions supported by those services. This issue is fixed in version 3.18.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
来源: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
novuhq novu < 3.18.0 -
@novu api-service < 3.18.0 -

二、漏洞 CVE-2026-75511 的公开POC

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三、漏洞 CVE-2026-75511 的情报信息

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CVE-2026-75511 其他参考 (3)

同批安全公告 · novuhq · 2026-09-22 · 共 3 条

CVE-2026-75517 6.5 MEDIUM Novu: Cross-Environment Integration Manipulation (IDOR)
CVE-2026-75510 5.1 MEDIUM Novu: Stored XSS in In-App Inbox via notification redirect.url javascript: scheme

IV. Related Vulnerabilities

Same product: novu
Same vendor: novuhq
Same weakness: CWE-918

V. Comments for CVE-2026-75511

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