CVE-2026-72590

CRITICAL 9.8

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

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-93
Vendor	alseambusher
Product	crontab-ui
Published	Aug 10, 2026
Last Updated	Aug 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

alseambusher / crontab-ui

0 ≤ 0.4.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/alseambusher/crontab-ui github.com: https://github.com/alseambusher/crontab-ui/blob/master/app.js

Credits

Shaxriyor Abdullayev (Kamol_cs)