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Description

A critical vulnerability in the Talend JobServer and Talend Runtime allows unauthenticated remote code execution via the JMX monitoring port. The attack vector is the JMX monitoring port of the Talend JobServer. The vulnerability can be mitigated for the Talend JobServer by requiring TLS client authentication for the monitoring port; however, the patch must be applied for full mitigation. For Talend ESB Runtime, the vulnerability can be mitigated by disabling the JobServer JMX monitoring port, which is disabled by default from the R2024-07-RT patch.

PUBLISHED Reserved 2026-04-14 | Published 2026-04-14 | Updated 2026-04-16 | Assigner Bugcrowd




CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-306 Missing Authentication for Critical Function

Product status

Default status
unaffected

8.0 (custom) before TPS-6017
affected

7.3 (custom) before TPS-6018
affected

Default status
unaffected

8.0 (custom) before 8.0.1.R2026-01-RT
affected

7.3 (custom) before 7.3.1-R2026-01
affected

Credits

Harpreet Singh (@TheCyb3rAlpha), Profession: Security Researcher

References

community.qlik.com/...end-JobServer-and-Talend/tac-p/2541974

cve.org (CVE-2026-6264)

nvd.nist.gov (CVE-2026-6264)

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