CVE-2026-18952

Missing Input Validation in Threat Intel Feed Parser in OpenSearch Security Analytics Plugin

Published Aug 12, 2026 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Description
Missing input validation in the threat intelligence feed parser in the OpenSearch Security Analytics plugin might allow an authenticated remote user to perform server-side request forgery and read local files via a crafted URL parameter to the threat intel source configuration endpoint.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Amazon
Amazon aws Opensearch
Vendors & Products Amazon
Amazon aws Opensearch
Type Values Removed Values Added
Description Missing input validation in the threat intelligence feed parser in the OpenSearch Security Analytics plugin might allow an authenticated remote user to perform server-side request forgery and read local files via a crafted URL parameter to the threat intel source configuration endpoint.
Title Missing Input Validation in Threat Intel Feed Parser in OpenSearch Security Analytics Plugin
First Time appeared Aws
Aws opensearch
Github
Github opensearch
Weaknesses CWE-918
CPEs cpe:2.3:a:aws:opensearch:*:*:*:*:*:*:*:*
cpe:2.3:a:github:opensearch:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws opensearch
Github
Github opensearch
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMZN
Published
Updated
Aug 21, 2026, 6:22 PM
Reserved
Aug 5, 2026, 1:44 PM
Status
Awaiting Analysis
Published
Aug 12, 2026, 7:17 PM
Modified
Aug 21, 2026, 7:17 PM