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CVE-2025-71389

Cal.com before 5.9.9 Remote Code Execution via RSC PUBLISHED

Description (CNA)

Cal.com (calcom/cal.diy) before 5.9.9 is vulnerable to unauthenticated remote code execution because it bundles a version of Next.js whose React Server Components (RSC) request handling deserializes attacker-controlled input. A remote attacker can send a crafted RSC request to the server and cause arbitrary code to be executed during server-side processing, without authentication or user interaction. The flaw derives from the upstream Next.js vulnerability CVE-2025-55182 and is resolved in 5.9.9 by updating the affected dependency.

Affected (CNA)

Vendor / productVersions
calcom / cal.diyaffected 0 before 5.9.9; unaffected 5.9.9

CWE

CWE-94

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.