Critical Security fix for the Talend JobServer and Talend Runtime

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Summary

CVECVE-2026-6264
StatePUBLISHED
AssignerBugcrowd
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-14 03:16:09 UTC
Updated2026-04-17 15:26:13 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from 4ac701fe-44e9-4bcd-9585-dd6449257611

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

EPSS: 0.002820000 probability, percentile 0.516570000 (date 2026-04-20)

Problem Types: CWE-306 Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.14ac701fe-44e9-4bcd-9585-dd6449257611Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Talend Talend JobServer affected 8.0 TPS-6017 custom Not specified
CNA Talend Talend JobServer affected 7.3 TPS-6018 custom Not specified
CNA Talend Talend Runtime affected 8.0 8.0.1.R2026-01-RT custom Not specified
CNA Talend Talend Runtime affected 7.3 7.3.1-R2026-01 custom Not specified

References

ReferenceSourceLinkTags
community.qlik.com/t5/Official-Support-Articles/Critical-Security-fix-for-the-Ql... 4ac701fe-44e9-4bcd-9585-dd6449257611 community.qlik.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Harpreet Singh (@TheCyb3rAlpha), Profession: Security Researcher (en)

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