CVE-2026-34072 Details
Description
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.
An authentication bypass vulnerability has been identified in Cronmaster versions prior to 2.2.0. The issue arises in the middleware's session validation process, where unauthenticated requests with invalid session cookies can be mistakenly treated as authenticated. This flaw allows unauthorized access to protected pages and the execution of privileged Next.js Server Actions. The vulnerability occurs because the middleware fails to securely handle exceptions during session validation, enabling attackers to exploit the flaw by supplying invalid session cookies and causing the validation to fail.
Users can upgrade to Cronmaster version 2.2.0 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/fccview/cronmaster/releases/tag/2.2.0 | [email protected] | Release Notes |
| https://github.com/fccview/cronmaster/security/advisories/GHSA-9whh-mffv-xvh6 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
| CWE-693 | Protection Mechanism Failure | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| fccview cronmaster | < 2.2.0 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 2, 2026 | Initial Analysis | [email protected] |
| Apr 1, 2026 | New CVE Received | [email protected] |