CVE-2026-34072 HIGH

CVE-2026-34072: cronmaster: Middleware authentication bypass enabling unauthorized page access and server-action execution

Vendor Fccview
Product cronmaster
Weakness CWE-287 · Improper authentication
Published April 1, 2026
Last update April 1, 2026

CVSS base score

8.3/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

What the vulnerability does

01Description

Cr*nMaster (cronmaster) is a Cronjob management UI with human readable syntax, live logging and log history for cronjobs. Prior to version 2.2.0, an authentication bypass in middleware allows unauthenticated requests with an invalid session cookie to be treated as authenticated when the middleware’s session-validation fetch fails. This can result in unauthorized access to protected pages and unauthorized execution of privileged Next.js Server Actions. This issue has been patched in version 2.2.0.

Key dates

02Disclosure timeline

April 1, 2026 CVE published
April 1, 2026 Record updated