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CVE Record

CVE-2021-40684: Talend ESB Runtime in all versions from 5.1 to 7.3.1-R2021-09, 7.2.1-R2021-09, 7.1.1-R2021-09, has an unaut...

Talend ESB Runtime in all versions from 5.1 to 7.3.1-R2021-09, 7.2.1-R2021-09, 7.1.1-R2021-09, has an unauthenticated Jolokia HTTP endpoint which allows remote access to the JMX of the runtime container, which would allow an attacker the ability to read or modify the container or software running in the container.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Talend ESB Runtime deployments in the listed version range may expose an unauthenticated Jolokia HTTP endpoint. That endpoint can provide remote access to runtime management controls, creating risk that an attacker could read or change the container or software running inside it.

Executive priority

Treat this as a priority for any internet-facing or broadly reachable Talend ESB Runtime. The business risk is unauthorized control or inspection of integration runtime containers. Urgency is lower where management endpoints are isolated and access-controlled.

Technical view

The CVE describes unauthenticated remote access to JMX through Jolokia in Talend ESB Runtime versions from 5.1 through the listed 7.1.1, 7.2.1, and 7.3.1 R2021-09 builds. The bundle does not provide CVSS, CWE, exploit details, or confirmed fixed-version text.

Likely exposure

Exposure is most likely where Talend ESB Runtime is deployed in the affected version range and its Jolokia HTTP endpoint is reachable from untrusted networks or users.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. Risk comes from unauthenticated remote management access with read or modification capability, not from cited exploit activity.

Researcher notes

Evidence is limited to the CVE description and Talend references. No CVSS vector, CWE mapping, exploit maturity, or explicit patch text is provided in the bundle. Avoid assuming affected products beyond Talend ESB Runtime.

Mitigation direction

  • Review Talend release notes and SF-141 for vendor-confirmed remediation guidance.
  • Inventory Talend ESB Runtime deployments and identify versions from 5.1 through the listed R2021-09 builds.
  • Prioritize systems where Jolokia or management interfaces are reachable from untrusted networks.
  • Apply the vendor-recommended fixed version or configuration when confirmed.
  • Restrict access to runtime management interfaces while vendor guidance is being applied.

Validation and detection

  • Confirm each Talend ESB Runtime version against the affected range in the CVE description.
  • Identify whether Jolokia HTTP endpoints are enabled on each runtime container.
  • Verify management endpoints are not reachable by unauthenticated or untrusted clients.
  • Review runtime logs for unexpected management or JMX access attempts.
  • Document remediation status with version, configuration, and exposure evidence.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-40684 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.