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TI-2026-84416 Aliases CVE-2026-115289GHSA-w3jx-fg2m-w3g8

Duplicate identifier flaw in APM Server leaks agent configuration

Priority LOW 20CWE-694Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Elastic APM Server versions 8.0.0 through 8.19.23, 9.0.0 through 9.4.8 and 9.5.0 through 9.5.5 are affected. Use of multiple resources with a duplicate identifier (CWE-694) lets a specially crafted agent configuration request return the central configuration of a different service. An authenticated APM agent can receive that configuration until the cached entry expires, and a service can run with settings such as sampling meant for another service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Use of Multiple Resources with Duplicate Identifier (CWE-694) in APM Server can lead to information disclosure via a specially crafted agent configuration request. An authenticated APM agent could receive the central agent configuration that belongs to a different service until the cached configuration expires. A service could also run with central configuration settings, such as sampling settings, that were meant for a different service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00241 15th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ElasticAPM Server8.0.0 – 8.19.23; 9.0.0 – 9.4.8; 9.5.0 – 9.5.5—No fix listedCNA
  • APM Server VendorElastic Affected 8.0.0 – 8.19.23; 9.0.0 – 9.4.8; 9.5.0 – 9.5.5 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:elastic:apm_server:*:*:*:*:*:*:*:*——Elastic
  • cpe:2.3:a:elastic:apm_server:*:*:*:*:*:*:*:* Versions — — ·Elastic

Remediation

The sources list no fixed version for APM Server.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-115289
  2. 2026-11-03 CISA SSVC decision points changed
  3. 2026-11-03 Alias added: GHSA-w3jx-fg2m-w3g8
  4. 2026-11-06 Affected versions changed · Red Hat
  5. 2026-11-06 CVSS score added · Red Hat

References

Other 1

  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2015-01295 The Groovy scripting engine in Elasticsearch before 1.3.8 and 1.4.x before 1.4.3 allows… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-02491 The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which… KEVCVSS 3.1HIGH 8.1
  • TI-2018-12328 Kibana versions before 6.4.3 and 5.6.13 contain an arbitrary file inclusion flaw in the… CVSS 3.0CRITICAL 9.8
  • TI-2023-15037 Elasticsearch StackOverflow vulnerability CVSS 3.1HIGH 7.5
  • TI-2021-05135 Information disclosure in Elasticsearch CVSS 3.1MEDIUM 6.5
See all 414 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences