An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2 allows an unauthenticated remote attacker to execute arbitrary system… (CVE-2026-72589)
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.
AI Analysis
Technical Summary
CVE-2026-72589 is an OS command injection vulnerability in alseambusher/crontab-ui versions up to 0.4.2. The POST /import endpoint accepts arbitrary .db files and overwrites the application database without validating the contents. This allows an unauthenticated remote attacker to execute arbitrary system commands by importing a crafted crontab database file. The vulnerability is classified under CWE-78 (Improper Neutralization of Special Elements used in an OS Command).
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to execute arbitrary system commands on the affected system, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability, as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, restrict access to the POST /import endpoint and avoid importing untrusted .db files to mitigate risk.
An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2 allows an unauthenticated remote attacker to execute arbitrary system… (CVE-2026-72589)
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.
CVSS v3.1
Score 9.8critical
Affected software
pkg:github/alseambusher/crontab-uiRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-72589 is an OS command injection vulnerability in alseambusher/crontab-ui versions up to 0.4.2. The POST /import endpoint accepts arbitrary .db files and overwrites the application database without validating the contents. This allows an unauthenticated remote attacker to execute arbitrary system commands by importing a crafted crontab database file. The vulnerability is classified under CWE-78 (Improper Neutralization of Special Elements used in an OS Command).
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to execute arbitrary system commands on the affected system, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability, as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, restrict access to the POST /import endpoint and avoid importing untrusted .db files to mitigate risk.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-r4j6-x8h7-4f8w
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-72589"]
- Ecosystems
- []
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6a79f0c7bf8831d539f6028a
Added to database: 08/10/2026, 15:39:51 UTC
Last enriched: 08/10/2026, 15:46:40 UTC
Last updated: 08/11/2026, 00:41:00 UTC
Views: 2
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