Search/CVE-2026-19311
● CVE — High

CVE-2026-19311

DiscoveredAug 12, 2026UpdatedAug 13, 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.

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CVSS v3.1
8.1 HIGH
EPSS
0.58%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
1
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 14, 2026 → Sep 25, 2026
▲ 0.17pp
0.41% → 0.58% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityNONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Connections
3 relationships
Timeline
disclosure → media coverage
Aug 12, 2026
Disclosure — published as a CVE record.
Oct 21, 2026
aws.amazon.com reports: CVE-2026-19311- Missing Authorization in OpenSearch Alerting Plugin