CVE-2026-34072Disclosure(fccview / cronmaster)

LOWCVSS 9.8 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD 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.

1.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-287CWE-306CWE-693

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • cronmaster

Threat summary

  • Public PoC is present in monitored signal
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-02); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
cronmaster

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-02: 1Mentions · 2026-06-02: 1PoC Mentioned / Linked · 2026-04-02: 1Technical Details · 2026-04-02: 1Technical Details · 2026-06-02: 104-0206-02
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-021
Disclosure1
2026-06-021
General1
Full discourse2 posts
  • DailyCVE@dailycve
    General

    🔴 CrnMaster, Authentication Bypass, #CVE-2026-34072 (Critical) -DC-Jun2026-134 https://dailycve.com/crnmaster-authentication-bypass-cve-2026-34072-critical-dc-jun2026-134/

    Post summary

    The note merely announces a CVE 2026-34072 as an authentication bypass with critical severity, lacking further detail or actionable insights.

    0000044
    209 followersView on X
  • The Hacker Wire@TheHackerWire
    Disclosure

    🟠 CVE-2026-34072 - High 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... https://www.thehackerwire.com/vulnerability/CVE-2026-34072/ https://t.co/NdaklLlMcM

    Post summary

    A newly disclosed CVE-2026-34072 in Cr*nMaster allows an authentication bypass in middleware (prior to v2.2.0). No PoC, exploit, or patch is referenced in the tweet beyond a link to a vulnerability report.

    0000047
    163 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appfccviewcronmaster---

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