CVE-2026-72590CWE-93

CVE-2026-72590

Critical · published August 10, 2026

CVSS v3.1
9.8
EPSS
2%
Percentile
81.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02043 · 81.0th percentile
Weakness
CWE-93 · Improper Neutralization of CRLF Sequences ('CRLF Injection')
Published
2026-08-10T15:17Z
References (2)
https://github.com/alseambusher/crontab-ui · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://github.com/alseambusher/crontab-ui/blob/master/app.js · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
EPSS history
Timeline
  • 10 AUG 10:41Z
    alseambusher crontab-ui - Unauthenticated RCE via Newline Injection in env_vars Parameter
    cvelistv5