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VulnerabilityPublished

CVE-2026-72589: alseambusher/crontab-ui · OS Command Injection Vulnerability

Affects crontab-uiSource GCVE Database

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Authoritative record:CVE-2026-72589· Critical 9.8

Not known to be exploited · CVSS 9.8 Critical : upgrade to 0.4.3 as a priority.

Data as of 7 Nov 2026, 23:24 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.9% chance of exploitation in 30 days – higher than 80% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.4.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.

What to do

Upgrade alseambusher/crontab-ui to 0.4.3.

Affected software

ProductAffectedFixed in
GitHubalseambusher/crontab-uipkg:github/alseambusher/crontab-uiOther threatsAffected
  • <0.4.3
Fixed in
  • 0.4.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, restrict access to the POST /import endpoint and avoid importing untrusted .db files to mitigate risk.

Description

An OS command injection vulnerability exists in alseambusher/crontab-ui through version 0.4.2. This flaw allows an unauthenticated remote attacker to execute arbitrary system commands by importing a specially crafted crontab database file via the POST /import endpoint, which accepts arbitrary .db files and overwrites the application database without validation. The vulnerability has a critical severity with a CVSS score of 9.8.

References

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