Vulnpedia
← Search CVEs

CVE-2026-103007

HIGH 7.2

Published 2026-10-06 · Last modified 2026-10-08

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.

ELEVATED IMPACT

Severe if exploited (CVSS 7.2), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 27th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

7.2CVSS 3.1 · HIGH

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires an admin / high-privilege account
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Elastic

Products Elasticsearch

Weakness (CWE)

  • CWE-863: Incorrect Authorization

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References and research data (JSON)

Vendor product assessments

  • rhoai/odh-feature-server-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-feature-server-rhel9?repository_url=registry.redhat.io/rhoai/odh-feature-server-rhel9

    • workaround: For deployments that use the delegated role-management privilege, review all roles that grant it and ensure their configured index names do not use wildcard or regular-expression patterns that could match system or restricted indices; restrict such grants to literal index names, or remove the privilege from roles assigned to users who should not be able to expand their own access. Audit existing roles created through this feature for unexpected access to restricted or internal indices, and review security audit logs for role or user modifications performed by accounts holding this privilege. Upstream has fixed the issue in Elasticsearch 8.19.22, 9.4.7, and 9.5.4, and upgrading to one of these or a later release verified to contain the fix is recommended. For the affected Fedora and EPEL community packages, apply updated packages once the community provides builds containing the upstream fix.
    • none available: Affected
    Red Hat · CVE-2026-103007 · Updated 2026-10-21T20:53:12+00:00
  • quay/quay-rhel8 as a component of Red Hat Quay 3 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:oci/quay-rhel8?repository_url=registry.redhat.io/quay/quay-rhel8

    Red Hat · CVE-2026-103007 · Updated 2026-10-21T20:53:12+00:00
  • quay/quay-rhel9 as a component of Red Hat Quay 3 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:oci/quay-rhel9?repository_url=registry.redhat.io/quay/quay-rhel9

    Red Hat · CVE-2026-103007 · Updated 2026-10-21T20:53:12+00:00

Known Affected Software Configurations

VendorProductVersion range
ElasticElasticsearch≥ 8.16.0 and < 8.19.22
ElasticElasticsearch≥ 9.0.0 and < 9.4.7
ElasticElasticsearch≥ 9.5.0 and < 9.5.4

All CVSS metrics

  • HIGH 7.2 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • HIGH 7.2 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS