Azkaban through 4.0.0 omits project permission checks in the ScheduleServlet fetchSchedule action, allowing authenticated users to read any project's schedule configuration. Attackers can supply arbitrary project and flow identifiers to retrieve sensitive schedule details including execution times, cron expressions, flow parameters, and notification email lists without proper authorization.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
azkaban azkaban unaffected
Version Status Constraints
0 affected ≤ 4.0.0

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Azkaban Project Subscribe
Azkaban Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/azkaban/azkaban cve-icon cve-icon
https://github.com/azkaban/azkaban/blob/4.0.0/azkaban-web-server/src/main/java/azkaban/webapp/servlet/ScheduleServlet.java#L237-L262 cve-icon cve-icon
https://github.com/azkaban/azkaban/blob/4.0.0/azkaban-web-server/src/main/java/azkaban/webapp/servlet/ScheduleServlet.java#L403-L412 cve-icon cve-icon
https://github.com/azkaban/azkaban/issues/3348 cve-icon cve-icon
https://github.com/azkaban/azkaban/releases/tag/4.0.0 cve-icon cve-icon
https://www.vulncheck.com/advisories/azkaban-through-4.0.0-authorization-bypass-via-scheduleservlet cve-icon cve-icon
History

Fri, 18 Sep 2026 16:15:00 +0000

Type Values Removed Values Added
Description Azkaban through 4.0.0 omits project permission checks in the ScheduleServlet fetchSchedule action, allowing authenticated users to read any project's schedule configuration. Attackers can supply arbitrary project and flow identifiers to retrieve sensitive schedule details including execution times, cron expressions, flow parameters, and notification email lists without proper authorization.
Title Azkaban through 4.0.0 Authorization Bypass via ScheduleServlet
First Time appeared Azkaban Project
Azkaban Project azkaban
Weaknesses CWE-862
CPEs cpe:2.3:a:azkaban_project:azkaban:*:*:*:*:*:*:*:*
Vendors & Products Azkaban Project
Azkaban Project azkaban
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-18T16:04:49.244Z

Reserved: 2026-09-18T15:38:23.890Z

Link: CVE-2026-93737

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-18T16:17:16.340

Modified: 2026-09-18T16:17:16.340

Link: CVE-2026-93737

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses