CVE-2026-34612 kestra-io CVE debrief

Who should care

Users of Kestra, especially those using the default docker-compose deployment, should be aware of this vulnerability and take immediate action to patch their systems. This includes administrators, security teams, and operators who manage Kestra deployments.

Technical summary

The vulnerability exists in the /api/v1/main/flows/search endpoint of Kestra, a default docker-compose deployment. An authenticated user can trigger the vulnerability by visiting a crafted link, leading to Remote Code Execution (RCE) via SQL Injection. The payload is executed by PostgreSQL, allowing arbitrary OS commands to be run on the host. This issue was patched in version 1.3.7. Affected product deployments should be identified in managed environments, and owners should be assigned for follow-up. The official advisory or CVE record should be reviewed to validate affected scope, severity, and vendor guidance. Vendor-supported updates or mitigations should be planned through normal change control where exposure is confirmed. Compensating controls for exposed systems should be reviewed while remediation is scheduled and verified. Relevant monitoring, detection, and logs for exposed assets should be checked, and exceptions should be tracked, and remediated assets should be retested, and the item should be closed only after evidence is documented.

Defensive priority

High

Recommended defensive actions

• Apply the patch by updating to version 1.3.7 or later
• Restrict access to the /api/v1/main/flows/search endpoint
• Monitor for suspicious activity on the Kestra platform
• Perform regular security audits and vulnerability assessments
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-04-03T23:17:04.587Z and last modified on 2026-07-24T22:10:00.140Z. The NVD entry is currently Analyzed. The vulnerability affects Kestra's default docker-compose deployment. Evidence is limited, and defenders should verify the patched version 1.3.7 or later.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.