RewindexCVEsAmazon Web Services
CVE-2026-77811: Stored Cross-Site Scripting via Integration Template Asset in OpenSearch Dashboards
High · CVSS 8.7 (CVSS 3.1)EPSS 0.52%, 44th percentilePublished Updated Assigner: AMZN
Description
Improper input validation in the dashboards-observability plugin in OpenSearch Dashboards allows a remote authenticated user with write permissions to OpenSearch Dashboards saved objects to execute arbitrary JavaScript in the context of other users' browser sessions by uploading a saved asset with arbitrary web content.
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N · CWE-79
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
AWS: Amazon OpenSearch ServiceOpenSearch: OpenSearch Dashboards dashboards-observability plugin
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- aws.amazon.com/security/security-bulletins/2026-088-aws/ (opens in new tab)
- github.com/opensearch-project/dashboards-observability/security/advisories/GHSA-… (opens in new tab)
- opensearch.org/artifacts/by-version/ (opens in new tab)
- opensearch.org/artifacts/by-version/ (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)