Amazon Opensearch Service
Monthly
Remote code execution in OpenSearch's SQL plugin cursor pagination component allows authenticated users holding only basic read/search permissions to execute arbitrary code on the server by supplying a crafted serialized cursor parameter to the plugins/sql endpoint. Affecting all versions of self-hosted OpenSearch and Amazon OpenSearch Service up to the patched releases, this CWE-502 deserialization flaw is particularly dangerous because the low privilege bar means any cluster user - not just administrators - can trigger it. Vendor-released patches exist in OpenSearch 2.19.6 and 3.7.0; no public exploit or CISA KEV listing has been identified at time of analysis.
Remote code execution in OpenSearch Dashboards 3.0.0-3.7.x allows an authenticated low-privileged user to fully compromise the server via a prototype pollution flaw in the Time Series Visual Builder (TSVB) plugin. By sending a crafted JSON payload to the metrics visualization API endpoint, an attacker can corrupt the Node.js object prototype chain and achieve arbitrary server-side code execution. Vendor-released patch is available at version 3.8.0; no public exploit code or CISA KEV listing has been identified at time of analysis.
Unbounded HTTP request payload processing in OpenSearch Dashboards' capabilities route handler allows unauthenticated remote attackers to exhaust server resources and cause a denial of service. Affected products span both self-hosted OpenSearch Dashboards (all versions per CPE) and Amazon OpenSearch Service. The CVSS 4.0 score of 8.7 with AV:N/AC:L/AT:N/PR:N/UI:N reflects low attack complexity and no authentication prerequisite, making any network-exposed instance potentially reachable. No public exploit or CISA KEV listing has been identified at time of analysis, and a vendor-released patch is available.
Stored cross-site scripting in the OpenSearch Dashboards dashboards-observability plugin allows a remote authenticated user with write permissions to saved objects to inject arbitrary JavaScript that executes in other users' browser sessions. Affected deployments include both self-hosted OpenSearch Dashboards and Amazon OpenSearch Service (managed). The scope change (S:C) and high confidentiality/integrity impact make this particularly dangerous in multi-tenant environments where admin accounts may view attacker-controlled saved assets. No public exploit or CISA KEV listing has been identified at time of analysis; vendor-released patches are available in versions 3.4.0 and 2.19.0.
Remote code execution in OpenSearch's SQL plugin cursor pagination component allows authenticated users holding only basic read/search permissions to execute arbitrary code on the server by supplying a crafted serialized cursor parameter to the plugins/sql endpoint. Affecting all versions of self-hosted OpenSearch and Amazon OpenSearch Service up to the patched releases, this CWE-502 deserialization flaw is particularly dangerous because the low privilege bar means any cluster user - not just administrators - can trigger it. Vendor-released patches exist in OpenSearch 2.19.6 and 3.7.0; no public exploit or CISA KEV listing has been identified at time of analysis.
Remote code execution in OpenSearch Dashboards 3.0.0-3.7.x allows an authenticated low-privileged user to fully compromise the server via a prototype pollution flaw in the Time Series Visual Builder (TSVB) plugin. By sending a crafted JSON payload to the metrics visualization API endpoint, an attacker can corrupt the Node.js object prototype chain and achieve arbitrary server-side code execution. Vendor-released patch is available at version 3.8.0; no public exploit code or CISA KEV listing has been identified at time of analysis.
Unbounded HTTP request payload processing in OpenSearch Dashboards' capabilities route handler allows unauthenticated remote attackers to exhaust server resources and cause a denial of service. Affected products span both self-hosted OpenSearch Dashboards (all versions per CPE) and Amazon OpenSearch Service. The CVSS 4.0 score of 8.7 with AV:N/AC:L/AT:N/PR:N/UI:N reflects low attack complexity and no authentication prerequisite, making any network-exposed instance potentially reachable. No public exploit or CISA KEV listing has been identified at time of analysis, and a vendor-released patch is available.
Stored cross-site scripting in the OpenSearch Dashboards dashboards-observability plugin allows a remote authenticated user with write permissions to saved objects to inject arbitrary JavaScript that executes in other users' browser sessions. Affected deployments include both self-hosted OpenSearch Dashboards and Amazon OpenSearch Service (managed). The scope change (S:C) and high confidentiality/integrity impact make this particularly dangerous in multi-tenant environments where admin accounts may view attacker-controlled saved assets. No public exploit or CISA KEV listing has been identified at time of analysis; vendor-released patches are available in versions 3.4.0 and 2.19.0.