CVE-2026-112043

calcom cal.com/cal.diy Webhook util.ts createWebhookProcedure authorization

MEDIUM
6.3
CVSS Score
Published: October 19, 2026 at 02:30 AM UTC
Updated: October 19, 2026 at 05:17 PM UTC
2 products affected across 1 vendorCal.diyCal.com

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

A weakness has been identified in calcom cal.com and cal.diy up to 6.2.0. Impacted is the function createWebhookProcedure of the file packages/trpc/server/routers/viewer/webhook/util.ts of the component Webhook Handler. Executing a manipulation of the argument ID can lead to authorization bypass. It is possible to launch the attack remotely. The pull request to fix this issue awaits acceptance.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/421691
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/421691/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-112043
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/1009017
Issue Tracking
Source: cverecord
https://github.com/calcom/cal.diy/issues/29982
Issue TrackingPatch
Source: cverecord
https://github.com/calcom/cal.diy/pull/30223

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639CWE-285

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