CVE-2026-6264: CWE-306 Missing Authentication for Critical Function in Talend Talend JobServer
CVE-2026-6264 is a critical vulnerability in Talend JobServer and Talend Runtime that allows unauthenticated remote code execution via the JMX monitoring port. The vulnerability arises from missing authentication controls on this critical function. Mitigation for Talend JobServer involves requiring TLS client authentication on the monitoring port, but a patch is necessary for full remediation. For Talend ESB Runtime, disabling the JobServer JMX monitoring port mitigates the issue; this port is disabled by default starting from the R2024-07-RT patch. The vulnerability affects versions 7. 3 and 8. 0 of Talend JobServer and has a CVSS score of 9. 8, indicating critical severity.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-6264) in Talend JobServer and Talend Runtime is due to missing authentication (CWE-306) on the JMX monitoring port, which allows unauthenticated remote attackers to execute code remotely. The attack vector is network-based (AV:N), requires no privileges or user interaction, and impacts confidentiality, integrity, and availability at a high level (CVSS 9.8). Mitigation includes enforcing TLS client authentication on the monitoring port for Talend JobServer and disabling the JMX monitoring port for Talend ESB Runtime, which is disabled by default from the R2024-07-RT patch. No official patch link or remediation level is provided in the data, so patch status is not confirmed.
Potential Impact
Successful exploitation allows unauthenticated remote code execution on affected Talend JobServer and Talend Runtime instances, leading to full compromise of confidentiality, integrity, and availability of the system. This can result in complete control over the affected server and potentially the broader environment it operates within.
Mitigation Recommendations
A full patch must be applied for complete mitigation, but patch status is not yet confirmed—check the vendor advisory for current remediation guidance. In the meantime, for Talend JobServer, require TLS client authentication on the JMX monitoring port to mitigate the vulnerability. For Talend ESB Runtime, ensure the JobServer JMX monitoring port is disabled; this is the default setting starting from the R2024-07-RT patch. Follow vendor advisories closely for updates on official fixes.
CVE-2026-6264: CWE-306 Missing Authentication for Critical Function in Talend Talend JobServer
Description
CVE-2026-6264 is a critical vulnerability in Talend JobServer and Talend Runtime that allows unauthenticated remote code execution via the JMX monitoring port. The vulnerability arises from missing authentication controls on this critical function. Mitigation for Talend JobServer involves requiring TLS client authentication on the monitoring port, but a patch is necessary for full remediation. For Talend ESB Runtime, disabling the JobServer JMX monitoring port mitigates the issue; this port is disabled by default starting from the R2024-07-RT patch. The vulnerability affects versions 7. 3 and 8. 0 of Talend JobServer and has a CVSS score of 9. 8, indicating critical severity.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-6264) in Talend JobServer and Talend Runtime is due to missing authentication (CWE-306) on the JMX monitoring port, which allows unauthenticated remote attackers to execute code remotely. The attack vector is network-based (AV:N), requires no privileges or user interaction, and impacts confidentiality, integrity, and availability at a high level (CVSS 9.8). Mitigation includes enforcing TLS client authentication on the monitoring port for Talend JobServer and disabling the JMX monitoring port for Talend ESB Runtime, which is disabled by default from the R2024-07-RT patch. No official patch link or remediation level is provided in the data, so patch status is not confirmed.
Potential Impact
Successful exploitation allows unauthenticated remote code execution on affected Talend JobServer and Talend Runtime instances, leading to full compromise of confidentiality, integrity, and availability of the system. This can result in complete control over the affected server and potentially the broader environment it operates within.
Mitigation Recommendations
A full patch must be applied for complete mitigation, but patch status is not yet confirmed—check the vendor advisory for current remediation guidance. In the meantime, for Talend JobServer, require TLS client authentication on the JMX monitoring port to mitigate the vulnerability. For Talend ESB Runtime, ensure the JobServer JMX monitoring port is disabled; this is the default setting starting from the R2024-07-RT patch. Follow vendor advisories closely for updates on official fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Bugcrowd
- Date Reserved
- 2026-04-14T01:12:19.962Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69ddaa9d82d89c981fae6a4d
Added to database: 4/14/2026, 2:46:53 AM
Last enriched: 4/14/2026, 3:01:50 AM
Last updated: 4/14/2026, 6:05:20 AM
Views: 8
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