CVE-2026-102407— Incorrect Authorization in Elasticsearch Leading to Unauthorized Data Stream Modification
Quick assessment
Affected
Elastic Elasticsearch
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Elasticsearch 中存在不正确的授权（CWE-863）漏洞，可能通过“访问未被访问控制列表（ACL）适当限制的功能”（CAPEC-1）导致数据流被未授权修改。具有足够权限的已认证用户可能利用 Modify Data Streams API 修改其本无权限访问的数据流，从而向该数据流注入数据或影响其正常搜索能力。此漏洞不允许攻击者读取其本身无权访问的数据流内容。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud StorageAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Elastic | Elasticsearch | 7.17.5≤ 7.17.29 |
affected |
8.2.2≤ 8.19.18 |
affected | ||
9.0.0≤ 9.3.7 |
affected | ||
9.4.0≤ 9.4.3 |
affected |
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I. Basic Information for CVE-2026-102407
Vulnerability Information
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Vulnerability Title
Incorrect Authorization in Elasticsearch Leading to Unauthorized Data Stream Modification
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect Authorization (CWE-863) in Elasticsearch can lead to unauthorized data stream modification via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user with sufficient privileges over a single resource could use the Modify Data Streams API to modify a data stream to which they were not otherwise authorized, potentially injecting data into it or affecting its ability to be searched normally. This issue does not allow an attacker to read the contents of a data stream they do not otherwise have access to.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Elastic | Elasticsearch | 7.17.5 ~ 7.17.29 | - |
|
II. Public POCs for CVE-2026-102407
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-102407 (1)
Same Patch Batch · Elastic · 2026-10-06 · 14 CVEs total
| CVE-2026-102406 | 8.8 HIGH | Authorization Bypass Through User-Controlled Key in Kibana Leading to Cross-Tenant Data In |
| CVE-2026-103007 | 7.2 HIGH | Incorrect Authorization in Elasticsearch Leading to Privilege Escalation |
| CVE-2026-103009 | 7.1 HIGH | Authorization Bypass Through User-Controlled Key in Elasticsearch Leading to Information D |
| CVE-2026-102412 | 6.5 MEDIUM | Incorrect Authorization in Kibana Leading to Sensitive Information Disclosure |
| CVE-2026-102409 | 6.5 MEDIUM | Uncontrolled Recursion in Elasticsearch Leading to Denial of Service |
| CVE-2026-102411 | 6.5 MEDIUM | Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of |
| CVE-2026-102404 | 6.5 MEDIUM | Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service |
| CVE-2026-103008 | 6.5 MEDIUM | Uncontrolled Recursion in Elasticsearch Leading to Denial of Service |
| CVE-2026-103005 | 6.5 MEDIUM | Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service |
| CVE-2026-103006 | 6.5 MEDIUM | Uncontrolled Recursion in Elasticsearch Leading to Denial of Service |
| CVE-2026-102413 | 6.2 MEDIUM | Uncaught Exception in Elastic Endpoint Leading to Denial of Service |
| CVE-2026-102410 | 4.3 MEDIUM | Missing Authorization in Kibana Leading to Information Disclosure |
| CVE-2026-102408 | 4.3 MEDIUM | Inefficient Regular Expression Complexity in Elasticsearch Leading to Denial of Service |
IV. Related Vulnerabilities
Same product: Elasticsearch
-
CVE-2026-103009
Authorization Bypass Through User-Controlled Key in Elastics -
CVE-2026-103008
Uncontrolled Recursion in Elasticsearch Leading to Denial of -
CVE-2026-103007
Incorrect Authorization in Elasticsearch Leading to Privileg -
CVE-2026-103006
Uncontrolled Recursion in Elasticsearch Leading to Denial of -
CVE-2026-103005
Memory Allocation with Excessive Size Value in Elasticsearch
Same vendor: Elastic
-
CVE-2026-103009
Authorization Bypass Through User-Controlled Key in Elastics -
CVE-2026-103008
Uncontrolled Recursion in Elasticsearch Leading to Denial of -
CVE-2026-103007
Incorrect Authorization in Elasticsearch Leading to Privileg -
CVE-2026-103006
Uncontrolled Recursion in Elasticsearch Leading to Denial of -
CVE-2026-103005
Memory Allocation with Excessive Size Value in Elasticsearch
Same weakness: CWE-863
-
CVE-2026-106463
Backstage: Improper authorization in GitLab organizational u -
CVE-2026-106461
Backstage: Incorrect authorization in scaffolder task listin -
CVE-2026-106458
Backstage: Inconsistent repository filtering in Bitbucket Se -
CVE-2026-106456
Backstage: Inconsistent credential enforcement for overlappi -
CVE-2026-103007
Incorrect Authorization in Elasticsearch Leading to Privileg
V. Comments for CVE-2026-102407
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