CVE-2026-86237 Details
Description
A vulnerability was found in openagents-org openagents up to 0.8.19/0.9.3.post20. Impacted is the function test_default_model of the file sdk/src/openagents/sdk/transports/http.py. Performing a manipulation of the argument base_url results in server-side request forgery. The attack may be initiated remotely. The exploit has been made public and could be used. Endpoint and both sinks unchanged since filing; only the file moved (e277dd1a). Maintainer closed as inapplicable yet the identical unguarded code still ships in 0.9.3.post20. Sibling admin endpoints do call the shipped-but-unused-by-this-handler _require_admin().
A server-side request forgery (SSRF) vulnerability has been identified in OpenAgents versions through 0.8.19 and 0.9.3.post20. The issue arises in the 'test_default_model' function within 'sdk/src/openagents/sdk/transports/http.py'. The vulnerability allows remote attackers to manipulate the 'base_url' argument, leading to unauthorized requests to internal services or metadata endpoints. This flaw is particularly concerning as it can be exploited to access sensitive information or services that are not exposed to the public internet.
It is recommended to add an admin requirement check to the 'test_default_model' endpoint, implement a URL allowlist for known LLM endpoints, block access to private IP ranges and cloud metadata URLs, enforce HTTPS-only connections, and apply DNS rebinding protections.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 7, 2026CISA-ADP
Assessed Sep 8, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://vuldb.com/submit/898788 | CISA-ADP | Issue TrackingPermission Required |
| https://vuldb.com/submit/901667 | CISA-ADP | Issue TrackingPermission Required |
| https://github.com/openagents-org/openagents/ | [email protected] | Vendor |
| https://github.com/openagents-org/openagents/issues/566 | [email protected] | ExploitIssue TrackingTechnical AnalysisVendor |
| https://vuldb.com/cve/CVE-2026-86237 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/898788 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/submit/901667 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/399394 | [email protected] | Permission Required |
| https://vuldb.com/vuln/399394/cti | [email protected] | Permission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openagents-org openagents | <= 0.8.19 (semver) <= 0.9.3.post20 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 8, 2026 | CVE Modified | CISA-ADP |
| Sep 7, 2026 | New CVE Received | [email protected] |