Authenticated SSRF via unrestricted threat feed URL
Published Aug 12, 2026 · Updated Aug 12, 2026
SSRF in OpenSearch Security Analytics 2.15.0 through 3.6.0 allows remote authenticated users to read local files through a crafted feed URL. The URL_DOWNLOAD threat-intelligence source passes an untrusted URL directly to a privileged network connection without a protocol allowlist or host denylist. The security_analytics_full_access role is required, and Amazon OpenSearch Service does not enable the affected functionality by default; exploitation can expose internal services, configuration, credentials, and keys.
Summary
What happened
SSRF in OpenSearch Security Analytics 2.15.0 through 3.6.0 allows remote authenticated users to read local files through a crafted feed URL. The URL_DOWNLOAD threat-intelligence source passes an untrusted URL directly to a privileged network connection without a protocol allowlist or host denylist. The security_analytics_full_access role is required, and Amazon OpenSearch Service does not enable the affected functionality by default; exploitation can expose internal services, configuration, credentials, and keys.
The record
- CVE
- CVE-2026-18952
- Published
- Aug 12, 2026
- Updated
- Aug 12, 2026
- Vendor
- OpenSearch Software Foundation
- Product
- OpenSearch
- Classifications
- CWE-918, CAPEC-664, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 12, 2026CVE publishedPublication date reported by the CVE source.
- Aug 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.15.0 <3.5.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo