CVE-2026-112043

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

Assigner: VulDB
Reserved: 18.10.2026 Published: 19.10.2026 Updated: 19.10.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: 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
CVSS Score: 6.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:C
CVSS Score: 6.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:C
CVSS Score: 6.5

Access Vector	Network	Confidentiality Impact	Partial
Access Complexity	Low	Integrity Impact	Partial
Authentication	Single	Availability Impact	Partial

CVSS 2.0

Product Status

Vendor	calcom
Product	cal.com
Versions	Version 6.0 is affected Version 6.1 is affected Version 6.2.0 is affected

Vendor

calcom

Product

cal.com

Versions

Version 6.0 is affected
Version 6.1 is affected
Version 6.2.0 is affected

Vendor	calcom
Product	cal.diy
Versions	Version 6.0 is affected Version 6.1 is affected Version 6.2.0 is affected

Vendor

calcom

Product

cal.diy

Versions

Version 6.0 is affected
Version 6.1 is affected
Version 6.2.0 is affected

Credits

geochen (VulDB User) reporter
VulDB CNA Team coordinator

References

Problem Types