Incorrect Authorization in Elasticsearch Leading to Information Disclosure (CVE-2026-56144) | HOL Guard CVE

Medium · CVSS 5.3CVE-2026-56144

Incorrect Authorization in Elasticsearch Leading to Information Disclosure

Answer in brief

CVE-2026-56144 records a Medium severity (CVSS 5.3) vulnerability in Incorrect Authorization in Elasticsearch Leading to Information Disclosure. 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 Jul 21, 2026Updated Aug 26, 2026Source checked Aug 26, 2026First seen by HOL Aug 8, 2026Material review Aug 26, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.3
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.3. 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.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:a:elastic:elasticsearch::::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Elastic/Elasticsearchgeneric	9.4.0 \|\| 9.0.0 \|\| 8.12.0	Not reported

Recommended response

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

Evidence timeline and material changes

Published upstream
Jul 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 8, 2026

Sources and claim methodology

Source referencediscuss.elastic.co

Upstream source description

Incorrect Authorization (CWE-863) in Elasticsearch can allow an authenticated user with limited index privileges to exploit insufficient authorization controls in the ingest simulation feature. By targeting indices they are not authorized to access directly, the user can cause those indices' configured ingest pipelines to execute and return their output, potentially disclosing data processed or enriched by those pipelines. Additionally, the same feature can be used to retrieve index mapping metadata for indices the user are not authorized to access directly.

Quoted source text, attributed separately from HOL analysis.