CVE-2026-93737: Azkaban through 4.0.0 omits project permission checks in the ScheduleServlet fetchSchedule action, allowing authenticated users to read any
Affects azkabanSource GCVE Database
Not known to be exploited · CVSS 6.5 Medium.
Data as of 2 Nov 2026, 10:58 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubazkaban/azkabanpkg:github/azkaban/azkabanOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, restrict authenticated user access to trusted personnel only and monitor for unusual access patterns to schedule configurations.
Description
Azkaban versions through 4.0.0 have a vulnerability in the ScheduleServlet fetchSchedule action that omits project permission checks. This allows any authenticated user to access schedule configurations of any project without proper authorization. Sensitive details exposed include execution times, cron expressions, flow parameters, and notification email lists.
References
- nvd.nist.gov/vuln/detail/CVE-2026-93737 (opens in a new tab)
- github.com/azkaban/azkaban/issues/3348 (opens in a new tab)
- github.com/azkaban/azkaban (opens in a new tab)
- github.com/azkaban/azkaban/blob/4.0.0/azkaban-web-server/src/main/java/azkaban/webapp/servlet/ScheduleServlet.java (opens in a new tab)
- github.com/azkaban/azkaban/blob/4.0.0/azkaban-web-server/src/main/java/azkaban/webapp/servlet/ScheduleServlet.java (opens in a new tab)
- github.com/azkaban/azkaban/releases/tag/4.0.0 (opens in a new tab)
- vulncheck.com/advisories/azkaban-through-4.0.0-authorization-bypass-via-scheduleservlet (opens in a new tab)