CVE-2026-84942
- Source
- https://cve.org/CVERecord?id=CVE-2026-84942
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84942.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-84942
- Published
- 2026-09-08T19:41:25Z
- Modified
- 2026-10-21T03:00:23Z
- Severity
-
- 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N CVSS Calculator
- Summary
- Stored Cross-Site Scripting via Vega Expression Function Bypass in OpenSearch Dashboards
- Details
-
Improper input validation in the Vega expression function implementation in OpenSearch Dashboards allows a remote authenticated actor with dashboard write permissions to execute arbitrary JavaScript in the context of other users' browser sessions by saving a crafted Vega visualization. The checkForFunctionProperty validation routine failed to recurse into arrays of objects, allowing a function property nested inside an array to bypass validation.
- Database specific
{ "cna_assigner": "AMZN", "cwe_ids": [ "CWE-79" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84942.json" }- References
-
- https://aws.amazon.com/security/security-bulletins/2026-102-aws/
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84942.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-84942
- https://github.com/opensearch-project/OpenSearch-Dashboards/releases/tag/2.19.5
- https://github.com/opensearch-project/OpenSearch-Dashboards/releases/tag/3.6.0
Affected packages
Git / github.com/opensearch-project/opensearch-dashboards
Affected ranges
- Type
- GIT
- Repo
- https://github.com/opensearch-project/opensearch-dashboards
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "v2.0.0" }, { "last_affected": "v3.5.0" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "original_tag": "3.6.0", "range": [ { "fixed": "47091b2bb937be28e29cde7c3d2c3c9ee6803c27" } ], "source": "REFERENCES_TAG" }, { "original_tag": "2.19.5", "range": [ { "fixed": "bc90b6a50a0989323442aba09ffd2ff270d5340f" } ], "source": "REFERENCES_TAG" } ] }