{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72846","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-08-10T15:14:51.467Z","datePublished":"2026-08-20T21:57:35.568Z","dateUpdated":"2026-08-21T15:39:22.777Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-08-21T11:20:59.612Z"},"datePublic":"2026-06-17T00:00:00.000Z","title":"Lightdash Scheduled Delivery Webhook URLs Are Not Validated, Allowing Server-Side Request Forgery","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Server-Side Request Forgery (SSRF)","cweId":"CWE-918","type":"CWE"}]}],"affected":[{"vendor":"lightdash","product":"lightdash","defaultStatus":"unaffected","packageURL":"pkg:npm/lightdash","repo":"https://github.com/lightdash/lightdash","versions":[{"version":"0","lessThan":"1.146.4","status":"affected","versionType":"semver"},{"version":"1.146.4","status":"unaffected","versionType":"semver"}],"programFiles":["packages/backend/src/clients/GoogleChat/GoogleChatClient.ts","packages/backend/src/clients/MicrosoftTeams/MicrosoftTeamsClient.ts"]}],"metrics":[{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/lightdash/lightdash/issues/24389","tags":["issue-tracking"],"name":"GitHub Issue #24389"},{"url":"https://github.com/lightdash/lightdash/blob/1.146.3/packages/backend/src/clients/GoogleChat/GoogleChatClient.ts","tags":["technical-description"],"name":"sendWebhook calling fetch on the stored URL at 1.146.3"},{"url":"https://github.com/lightdash/lightdash/blob/1.146.3/packages/backend/src/clients/MicrosoftTeams/MicrosoftTeamsClient.ts","tags":["technical-description"],"name":"sendWebhook calling fetch on the stored URL at 1.146.3 (Microsoft Teams)"},{"url":"https://github.com/lightdash/lightdash/releases/tag/1.146.4","tags":["release-notes"],"name":"Lightdash 1.146.4 Release Notes"},{"url":"https://github.com/lightdash/lightdash","tags":["product"]},{"name":"VulnCheck Advisory: Lightdash Scheduled Delivery Webhook URLs Are Not Validated, Allowing Server-Side Request Forgery","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/lightdash-scheduled-delivery-webhook-urls-are-not-validated-allowing-server-side-request-forgery"}],"credits":[{"lang":"en","value":"George Chen","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"references":[{"url":"https://github.com/lightdash/lightdash/issues/24389","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T15:38:39.102270Z","id":"CVE-2026-72846","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-21T15:39:22.777Z"}}]}}