CVE-2026-34072
HIGHcronmaster: Middleware authentication bypass enabling unauthorized page access and server-action execution
Title source: cnaDescription
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.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/fccview/cronmaster/security/advisories/GHSA-9whh-mffv-xvh6
X_Refsource_Misc x_refsource_misc
https://github.com/fccview/cronmaster/releases/tag/2.2.0
Scores
CVSS v3
8.3
EPSS
0.0044
EPSS Percentile
35.0%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-287
CWE-306
CWE-693
Status
published
Products (1)
fccview/cronmaster
< 2.2.0 (2 CPE variants)
Published
Apr 01, 2026
Tracked Since
Apr 01, 2026