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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72590
StatePUBLISHED
AssignerTuranSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 11:17:32 UTC
Updated2026-08-10 14:17:30 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

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

EPSS: 0.012810000 probability, percentile 0.673650000 (date 2026-08-11)

Problem Types: CWE-93 | CWE-93 CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')

VersionSourceTypeScoreSeverityVector
3.1309f9ea4-e3e9-4c6c-b79d-e8eb01244f2cSecondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Alseambusher Crontab-ui affected 0.4.2 semver Not specified

References

ReferenceSourceLinkTags
github.com/alseambusher/crontab-ui 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c github.com
github.com/alseambusher/crontab-ui/blob/master/app.js 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Shaxriyor Abdullayev (Kamol_cs) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-08-10T10:32:53.000ZCVE Reserved
CNA2026-08-10T10:32:53.000ZPublic Disclosure

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