CVE-2026-34072cronmaster: Middleware authentication bypass enabling unauthorized page access and server-action execution
Updated under an hour ago ()
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It affects fccview cronmaster. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.3 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
- Weakness (CWE)
- CWE-287, CWE-306, CWE-693
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Apr 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
fccview cronmaster fccview:cronmaster (from the name) | before 2.2.0 | CNA record |
fccview cronmaster fccview:cronmaster | before 2.2.0 | NVD |
References
- https://github.com/fccview/cronmaster/security/advisories/GHSA-9whh-mffv-xvh6x-refsource-confirm, vendor-advisory
- https://github.com/fccview/cronmaster/releases/tag/2.2.0x-refsource-misc, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.