Amazon Opensearch Service
Monthly
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.
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.