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Incorrect authorization in Elasticsearch enables privilege escalation

Priority LOW 34CWE-863Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-863.

Summary

Elastic Elasticsearch versions 8.16.0 through 8.19.21, 9.0.0 through 9.4.6, and 9.5.0 through 9.5.3 are affected. A non-default delegated role management privilege has an authorization check that does not fully enforce index scoping, because a role setting can expand the matched index set (CWE-863). A user holding this privilege with a broadly scoped index pattern can gain access to restricted indices, including internal security data, and escalate to full cluster administration.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Incorrect Authorization (CWE-863) in Elasticsearch can lead to Privilege Escalation via a delegated administrative privilege whose scope is not fully enforced during authorization checks. Elasticsearch contains an incorrect authorization weakness in a configurable, non-default privilege that lets an administrator delegate limited role-management capability to another user, scoped to specific indices. The authorization check that enforces this scoping does not correctly account for a role-definition setting that can expand the matched index set. A user holding this delegated privilege with a broadly-scoped index pattern can exploit this inconsistency by updating their own assigned role to gain access to indices that should remain restricted, including internal security data. This can enable further escalation up to full administrative control of the cluster.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0034 27th 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
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
ElasticElasticsearch8.16.0 – 8.19.21; 9.0.0 – 9.4.6; 9.5.0 – 9.5.3—No fix listedCNA
  • Elasticsearch VendorElastic Affected 8.16.0 – 8.19.21; 9.0.0 – 9.4.6; 9.5.0 – 9.5.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*8.16.0 to before 8.19.22; 9.0.0 to before 9.4.7; 9.5.0 to before 9.5.4VulnerableElastic
  • cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:* Versions 8.16.0 to before 8.19.22; 9.0.0 to before 9.4.7; 9.5.0 to before 9.5.4 Vulnerable ·Elastic

Remediation

The sources list no fixed version for Elasticsearch. Red Hat rates this Important and lists Red Hat OpenShift AI (RHOAI) as affected, with no fix plan available.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet
Not affected: 1 product
  • Red Hat Quay 3

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-103007
  2. 2026-10-07 CISA SSVC decision points changed
  3. 2026-10-07 Priority changed: MEDIUM → LOW
  4. 2026-10-07 Alias added: GHSA-5jrv-cmh5-3vmg
  5. 2026-10-07 Affected versions changed · Red Hat
  6. 2026-10-07 CVSS score added · Red Hat
  7. 2026-10-08 CISA SSVC decision points changed
  8. 2026-10-22 Affected versions changed · Red Hat

References

  • 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-2023-15037 Elasticsearch StackOverflow vulnerability CVSS 3.1HIGH 7.5
  • TI-2021-05135 Information disclosure in Elasticsearch CVSS 3.1MEDIUM 6.5
  • TI-2021-05136 All versions of Elastic Cloud Enterprise has the Elasticsearch “anonymous” user enabled… CVSS 3.1HIGH 7.5
  • TI-2015-04530 Elasticsearch before 1.6.1 allows remote attackers to execute arbitrary code via… CVSS 3.0CRITICAL 9.8
See all 90 →

Sources