by Kastro
Paper/Archive/CVE-2026-72590

CVE-2026-72590

alseambusher crontab-ui — alseambusher crontab-ui - Unauthenticated RCE via Newline Injection in env_vars Parameter

EPSS 2%CVSS 9.8
critical.is priorityof 100
46
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 81.2.812 × 2016.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
crontab-ui≤ 0.4.2–CNA

Scores by source

TuranSec (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

writeupgithub.com/alseambusher/crontab-uiwriteupgithub.com/alseambusher/crontab-ui/blob/master/app.js