CVE-2026-112043

MEDIUM 6.3

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

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639 CWE-285
Vendor	calcom
Product	cal.com
Published	Oct 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

calcom / cal.com

6.0 6.1 6.2.0

calcom / cal.diy

6.0 6.1 6.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/421691 vuldb.com: https://vuldb.com/vuln/421691/cti vuldb.com: https://vuldb.com/cve/CVE-2026-112043 vuldb.com: https://vuldb.com/submit/1009017 github.com: https://github.com/calcom/cal.diy/issues/29982 github.com: https://github.com/calcom/cal.diy/pull/30223

Credits

🔍 geochen (VulDB User) VulDB CNA Team