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  4. CVE 2026 102407 incorrect authorization in elasticsearch leading
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Back to active CVEs
Medium · CVSS 5.4CVE-2026-102407

Incorrect Authorization in Elasticsearch Leading to Unauthorized Data Stream ModificationCVE-2026-102407

Answer in brief

CVE-2026-102407 records a Medium severity (CVSS 5.4) vulnerability in Incorrect Authorization in Elasticsearch Leading to Unauthorized Data Stream Modification. The current sources do not mark it as known exploited. The current feed maps Elastic/Elasticsearch (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 6, 2026Updated Oct 6, 2026Source checked Oct 7, 2026First seen by HOL Oct 6, 2026Material review Oct 6, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.4
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Elastic/Elasticsearch (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Elastic/Elasticsearchgeneric>=7.17.5 <=7.17.29 || >=8.2.2 <=8.19.18 || >=9.0.0 <=9.3.7 || >=9.4.0 <=9.4.3Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Elastic/Elasticsearch.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 6, 2026

Sources and claim methodology

  • Source referencediscuss.elastic.co
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Gitea tag delete route deletes releases without release permissionAlso CWE-863
  • Gitea issue attachment API allows changing comment attachmentsAlso CWE-863
  • Backstage: Inconsistent enforcement of allowed location types during catalog processingAlso CWE-863
  • Backstage: Inconsistent catalog property permission evaluationAlso CWE-863
  • Backstage: Improper URL validation in catalog entity placeholder resolutionAlso CWE-863
  • Gitea push mirror local path check uses the repository ownerAlso CWE-863

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-863
Source
CVE List V5
Source checked
Oct 7, 2026
References
1 linked source
Open source record