Medium severity · published Oct 19, 2026
CVE-2026-112043
calcom cal.com/cal.diy Webhook util.ts createWebhookProcedure authorization
6.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
cal.com · calcom
6.0; 6.1; 6.2.0 · source: vendor
CA
cal.diy · calcom
6.0; 6.1; 6.2.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-112043
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-112043
github.com
https://github.com/calcom/cal.diy/issues/29982
github.com
https://github.com/calcom/cal.diy/pull/30223
vuldb.com
https://vuldb.com/cve/CVE-2026-112043
vuldb.com
https://vuldb.com/submit/1009017
vuldb.com
https://vuldb.com/vuln/421691
vuldb.com
https://vuldb.com/vuln/421691/cti
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