CVE-2026-18952
highpriority · track · 0EPSS 0.005 · 44 %ileEUEPSS · scored 2026-10-27
Missing input validation in the threat intelligence feed parser in the OpenSearch Security Analytics plugin might allow an authenticated remote user to perform server-side request forgery and read local files via a crafted URL parameter to the threat intel source configuration endpoint.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.2–8.6
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://aws.amazon.com/security/security-bulletins/2026-079-aws/cnnvd
- https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.htmlcnnvd
- https://aws.amazon.com/security/security-bulletins/2026-079-aws/enisa_euvd
- https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.htmlenisa_euvd
- https://aws.amazon.com/security/security-bulletins/2026-079-aws/nvd
- https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.htmlnvd
- https://github.com/opensearch-project/security-analytics/security/advisories/GHSA-w946-8jxc-6v3mnvd
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