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CVE-2026-72846— Lightdash Scheduled Delivery Webhook URLs Are Not Validated, Allowing Server-Side Request Forgery

Quick assessment

Affected
lightdash lightdash
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Lightdash是Lightdash公司开源的一款日志分析支撑系统。 Lightdash 1.146.4之前版本存在服务端请求伪造漏洞，该漏洞源于GoogleChat和MicrosoftTeams客户端中的sendWebhook函数直接对存储的webhook URL发起请求且缺乏服务端URL验证，可能导致攻击者利用计划交付功能向私有、回环和链路本地地址发起POST请求，造成服务端请求伪造。

CVSS 6.4 · Medium EPSS 0.32% · P23

Affected Version Matrix 2

VendorProduct Version RangeStatus
lightdash lightdash < 1.146.4 affected
1.146.4 unaffected
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I. Basic Information for CVE-2026-72846

Vulnerability Information
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Vulnerability Title
Lightdash Scheduled Delivery Webhook URLs Are Not Validated, Allowing Server-Side Request Forgery
Source: CVE Program / CVE List V5
Vulnerability Description
Lightdash stores the webhook URL supplied with a scheduled delivery and later posts to it from sendWebhook in packages/backend/src/clients/GoogleChat/GoogleChatClient.ts and in packages/backend/src/clients/MicrosoftTeams/MicrosoftTeamsClient.ts. In affected versions both call fetch on the stored URL directly. The validatePublicHttpUrl helper in packages/backend/src/utils/ssrfProtection.ts, used for MCP server URLs, is not applied on either path, and the webhook fields carry no server-side URL constraint. A user able to create or trigger a scheduled delivery can therefore direct the server to issue POST requests to private, loopback and link-local addresses, including cloud metadata endpoints, and can distinguish reachable internal services from unreachable ones through the resulting errors. The upstream response is never returned to the requester; on a failure status its body is written to the server log instead. Version 1.146.4 routes both clients through postSchedulerWebhook from packages/backend/src/utils/schedulerWebhookValidation rather than calling fetch directly.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Lightdash 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lightdash是Lightdash公司开源的一款日志分析支撑系统。 Lightdash 1.146.4之前版本存在服务端请求伪造漏洞，该漏洞源于GoogleChat和MicrosoftTeams客户端中的sendWebhook函数直接对存储的webhook URL发起请求且缺乏服务端URL验证，可能导致攻击者利用计划交付功能向私有、回环和链路本地地址发起POST请求，造成服务端请求伪造。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
lightdash lightdash 0 ~ 1.146.4 -

II. Public POCs for CVE-2026-72846

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III. Intelligence Information for CVE-2026-72846

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Vendor Advisories for CVE-2026-72846 (1)

Proof of Concept for CVE-2026-72846 (1)

Vendor Pages for CVE-2026-72846 (2)

Other References for CVE-2026-72846 (2)

IV. Related Vulnerabilities

Same product: lightdash
Same vendor: lightdash
Same weakness: CWE-918

V. Comments for CVE-2026-72846

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