Incorrect Authorization in Elasticsearch Leading to Unauthorized Data Stream Modification
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.
CVE-2026-102407
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-102407
Elasticsearch
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Elastic",
"product": "Elasticsearch",
"versions": [
{
"status": "affected",
"version": "7.17.5",
"versionType": "semver",
"lessThanOrEqual": "7.17.29"
},
{
"status": "affected",
"version": "8.2.2",
"versionType": "semver",
"lessThanOrEqual": "8.19.18"
},
{
"status": "affected",
"version": "9.0.0",
"versionType": "semver",
"lessThanOrEqual": "9.3.7"
},
{
"status": "affected",
"version": "9.4.0",
"versionType": "semver",
"lessThanOrEqual": "9.4.3"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-102407
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #9574 · Revision 1
- Added to Heist Feed
- Publisher date