Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate with read-only ECE account
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ExploitSend request to change installation-wide account setting
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ExecutionAuthorization check fails to enforce admin-only restriction
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ImpactPlatform-level setting modified without admin rights
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization logic validation
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Requires a valid, already-authenticated Elastic Cloud Enterprise account holding read-only platform access (PR:L) that is network-reachable to the ECE management interface; no victim user interaction is needed (UI:N). Exploitation is limited to changing a single installation-wide account setting normally restricted to platform administrators - impact is integrity-only (I:L), with no confidentiality or availability consequences stated. The principal limiting factor is the need for an existing low-privileged platform account, so exposure is bounded to users who already have some authorized access to the ECE platform; the exact setting and trigger mechanism are not described in the available sources. |
| Impact | This is a medium-severity authorization flaw (CVSS 4.3) that signals indicate is a routine, schedule-driven patch rather than an emergency. The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) shows network-reachable, low-complexity exploitation but requires an already-authenticated low-privileged account (PR:L), and the only impact is a limited integrity effect (I:L) - no confidentiality or availability impact. The vuln.today decision label is 'this_month', consistent with a moderate, non-urgent priority. No EPSS score, no CISA KEV listing, and no public exploit were provided in the input, so there is no evidence of active exploitation or an available exploit. The practical risk is a privilege/authorization boundary violation: a read-only platform user can alter an installation-wide setting reserved for platform administrators, which is a governance and integrity concern rather than a data-breach or service-outage risk. EPSS is simply absent (not low) here, so exploitation probability cannot be quantified from the data; the main signal of real-world importance is the vendor (Elastic) self-reporting and shipping fixed versions. |
| Exploit ScenarioDerived | An attacker who already holds a legitimate read-only account on an Elastic Cloud Enterprise installation sends an authenticated request to modify an installation-wide account setting that should be restricted to platform administrators. Because the authorization check is incorrect, the change is accepted, letting a low-trust user alter platform-level configuration beyond their intended role. No public exploit code or PoC was identified in the available data, and no user interaction by a victim is required. |
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Alert meAnalysisAIv1 – Oct 29, 2026
Elastic Cloud Enterprise (ECE) permits an authenticated platform user with read-only access to change an installation-wide account setting that should be restricted to platform administrators, due to incorrect authorization (CWE-863). The flaw is network-reachable, requires a valid low-privileged ECE account, needs no user interaction, and has integrity-only impact (CVSS 4.3). No CISA KEV entry or public exploit was identified at time of analysis, and the priority label indicates a routine, schedule-driven patch rather than an emergency.
RemediationAI
Vendor-released patch: Elastic Cloud Enterprise 3.8.6 and 4.2.1 per advisory ESA-2026-221. Apply the security update referenced at https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-221/391265. No separate workaround or compensating control is described in the provided data; consult the vendor advisory for any environment-specific guidance.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The issue is an incorrect authorization weakness (CWE-863) mapped to CAPEC-1, Accessing Functionality Not Properly Constrained by ACLs. In Elastic Cloud Enterprise, server-side access control for a platform-level account setting appears to be missing or insufficient: an authenticated account holding read-only platform access can perform a modification that should require platform administrator privileges. The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) confirms network exploitation with a low-privileged authenticated account, no user interaction, and limited integrity impact only; confidentiality and availability are unaffected. The exact setting affected and the trigger mechanism are not described in the available sources.
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Network-reachable management action by an authenticated low-privileged user (PR:L), no user interaction, limited integrity impact from altering one platform setting and no confidentiality or availability effect.
Primary rating from Vendor (elastic).
CVSS VectorVendor: elastic
DescriptionCVE.org
Incorrect Authorization (CWE-863) in Elastic Cloud Enterprise (ECE) can lead to unauthorized modification of platform-level settings via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user with read-only access to the platform can change an installation-wide account setting that only platform administrators are permitted to change.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
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