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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 在存储调度发送任务时，会保存用户提供的 Webhook URL，并在后续通过 函数向该地址发起 HTTP 请求。相关代码位于 和 。 在受影响的版本中，这两个客户端直接对存储的 URL 调用 发起请求。虽然项目中存在用于防护 SSRF（服务器端请求伪造）的辅助函数 （位于 ），但该函数仅用于验证 MCP 服务器 URL，并未在此两条 Webhook 发送路径中应用。此外，Webhook 字段在服务器端未对 URL 施加任何约束限制。 因此，能够创建或触发调度发送任务的攻击者，可以诱使服务器向私有

CVSS 6.4 · Medium EPSS 0.26% · P18

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

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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