alseambusher crontab-ui - Unauthenticated RCE via Newline Injection in env_vars Parameter
Priority MEDIUM 53CWE-93Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2 allows an unauthenticated remote attacker to inject arbitrary cron job entries by sending a crafted GET request to /crontab with URL-encoded newlines in the env_vars parameter.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02043 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| alseambusher | crontab-ui | up to 0.4.2 | — | No fix listed | CNA |
- crontab-ui Vendoralseambusher Affected up to 0.4.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-72590
- 2026-10-03 Alias added: GHSA-25qx-69jj-jfcj
References
Advisory 1
Other 1
More alseambusher vulnerabilities
- TI-2026-50846 alseambusher crontab-ui - Unauthenticated RCE via Shell Injection in Imported Database hook Field CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-72590 · CVE Program
- CVE-2026-72590 · NVD
- FIRST EPSS
- GHSA-25qx-69jj-jfcj · GitHub Advisory Database · CC BY 4.0
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