CVE-2026-19311 PUBLISHED

Missing Authorization in Execute Monitor API in OpenSearch Alerting Plugin

Assigner: AMZN
Reserved: 07.08.2026 Published: 12.08.2026 Updated: 13.08.2026

Missing authorization in the Execute Monitor API in Amazon OpenSearch Alerting plugin might allow an authenticated remote user to read, modify, or delete arbitrary index data via a crafted inline monitor request with unintentional data source and input index parameters.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS Score: 8.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	AWS
Product	OpenSearch
Versions	Default: unaffected affected from 2.4 to 3.5 (incl.)

Vendor	Github
Product	OpenSearch
Versions	Default: unaffected affected from 2.4.0 to 2.19.5 (incl.) affected from 3.0.0 to 3.7.0 (incl.)

CVE-2026-19311 PUBLISHED

Missing Authorization in Execute Monitor API in OpenSearch Alerting Plugin

Metrics

Product Status

References

Problem Types

Impacts