CVE-2026-93737

MEDIUM 6.5

Azkaban through 4.0.0 Authorization Bypass via ScheduleServlet

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	azkaban
Product	azkaban
Published	Sep 18, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

azkaban / azkaban

0 ≤ 4.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

George Chen