CVE-2026-18420 - Remote Code Execution via Prototype Pollution in OpenSearch Dashboards TSVB Plugin
CVE-2026-18420 is a critical remote code execution vulnerability caused by prototype pollution in the OpenSearch Dashboards TSVB plugin. The vulnerability allows an attacker to execute arbitrary code remotely. The issue is documented in an AWS Security Bulletin published on July 31, 2026. No specific affected versions or patch information are provided in the available data. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-18420) involves remote code execution via prototype pollution in the OpenSearch Dashboards TSVB plugin. Prototype pollution is a type of vulnerability where an attacker can manipulate a program's object prototype, potentially leading to arbitrary code execution. The AWS Security Bulletin references this issue but does not provide detailed technical or remediation information. No affected versions or patch details are explicitly stated in the provided data.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code remotely on systems running the vulnerable OpenSearch Dashboards TSVB plugin. This could lead to full compromise of the affected system. However, no known exploits in the wild have been reported as of the publication date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, users should monitor the official AWS Security Bulletin and OpenSearch project advisories for updates. Until a fix is available, consider limiting access to the OpenSearch Dashboards TSVB plugin and applying general security best practices to reduce exposure.
CVE-2026-18420 - Remote Code Execution via Prototype Pollution in OpenSearch Dashboards TSVB Plugin
Description
CVE-2026-18420 is a critical remote code execution vulnerability caused by prototype pollution in the OpenSearch Dashboards TSVB plugin. The vulnerability allows an attacker to execute arbitrary code remotely. The issue is documented in an AWS Security Bulletin published on July 31, 2026. No specific affected versions or patch information are provided in the available data. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-18420) involves remote code execution via prototype pollution in the OpenSearch Dashboards TSVB plugin. Prototype pollution is a type of vulnerability where an attacker can manipulate a program's object prototype, potentially leading to arbitrary code execution. The AWS Security Bulletin references this issue but does not provide detailed technical or remediation information. No affected versions or patch details are explicitly stated in the provided data.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code remotely on systems running the vulnerable OpenSearch Dashboards TSVB plugin. This could lead to full compromise of the affected system. However, no known exploits in the wild have been reported as of the publication date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, users should monitor the official AWS Security Bulletin and OpenSearch project advisories for updates. Until a fix is available, consider limiting access to the OpenSearch Dashboards TSVB plugin and applying general security best practices to reduce exposure.
Technical Details
- Article Source
- {"url":"https://aws.amazon.com/security/security-bulletins/rss/2026-068-aws/","fetched":true,"fetchedAt":"2026-07-31T19:31:31.794Z","wordCount":308}
Threat ID: 6a6cf814bf32cb7a342b73cc
Added to database: 07/31/2026, 19:31:32 UTC
Last enriched: 07/31/2026, 19:31:41 UTC
Last updated: 07/31/2026, 19:37:46 UTC
Views: 3
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