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CVE-2026-77811: OpenSearch Dashboards dashboards-observability plugin 0 to before 3.4, 0 to before 2.19.6
CVE-2026-77811. CVSS 3.1 base score 8.7 (HIGH, Source advisory). EPSS 0.00518 (percentile 0.42472), scored 13-Oct-2026.
Affected technology
OpenSearch Dashboards dashboards-observability plugin · 0 to before 3.4, 0 to before 2.19.6
OpenSearch
Component: Not specified by the source
Attack conditions (Source advisory, CVSS 4.0): Network (remote) · Low privileges required · Active user interaction
What an attacker can do
A remote authenticated user with write permissions to OpenSearch Dashboards saved objects can execute arbitrary JavaScript in the context of other users' browser sessions by uploading a saved asset with arbitrary web content. Source advisory’s CVSS 4.0 assessment (base score 6.2/10) rates confidentiality, integrity and availability impact as none.
- CWE
- CWE-79
- CCR priority
- 34.9 /100 (P4)
- CVSS 3.1
- 8.7 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N · Source advisory
- EPSS
- 0.00518 · percentile 0.42472 · 2026-10-13
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-15 01:07:31.726917+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-77811.html