CVE-2026-72590 json
alseambusher crontab-ui - Unauthenticated RCE via Newline Injection in env_vars Parameter
published 2026-08-10 2 mo ago modified 2026-10-24 16 d ago also EUVD-2026-55216
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
2.04% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- alseambusher crontab-ui
Classification
- Weakness
-
- CWE-93 Improper Neutralization of CRLF Sequences
References
-
github.com
/alseambusher/crontab-ui
third-party-advisory
-
github.com
/alseambusher/crontab-ui/blob/master/app.js
technical-description
Sources
- CVE List CVE-2026-72590
- NVD CVE-2026-72590
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.