CVE-2026-6264

Critical Security fix for the Talend JobServer and Talend Runtime

Published Apr 14, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-284
CWE-287
Type Values Removed Values Added
First Time appeared Talend talend Jobserver
Vendors & Products Talend talend Jobserver
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Critical Security fix for the Talend JobServer and Talend Runtime
First Time appeared Talend
Talend esb Runtime
Talend jobserver
CPEs cpe:2.3:a:talend:esb_runtime:*:*:*:*:*:*:*:*
cpe:2.3:a:talend:jobserver:*:*:*:*:*:*:*:*
Vendors & Products Talend
Talend esb Runtime
Talend jobserver
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Bugcrowd
Published
Updated
Apr 16, 2026, 12:03 AM
Reserved
Apr 14, 2026, 1:12 AM
Status
Awaiting Analysis
Published
Apr 14, 2026, 3:16 AM
Modified
Oct 26, 2026, 10:10 PM