CVE-2026-33340 Details
Description
LoLLMs WEBUI provides the Web user interface for Lord of Large Language and Multi modal Systems. A critical Server-Side Request Forgery (SSRF) vulnerability has been identified in all known existing versions of `lollms-webui`. The `@router.post("/api/proxy")` endpoint allows unauthenticated attackers to force the server into making arbitrary GET requests. This can be exploited to access internal services, scan local networks, or exfiltrate sensitive cloud metadata (e.g., AWS/GCP IAM tokens). As of time of publication, no known patched versions are available.
A critical Server-Side Request Forgery (SSRF) vulnerability exists in all versions of LoLLMs WebUI. The vulnerability is located in the '@router.post("/api/proxy")' endpoint, which allows unauthenticated attackers to make arbitrary GET requests. This exploitation can access internal services, scan local networks, or exfiltrate sensitive cloud metadata, such as AWS or GCP IAM tokens. As of now, no patched versions are available.
To address this vulnerability, implement authentication for the endpoint, validate URLs to allow only trusted domains, and block requests to private IP ranges and cloud metadata endpoints.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/ParisNeo/lollms-webui/security/advisories/GHSA-mcwr-5469-pxj4 | CISA-ADP | ExploitMitigationVendor Advisory |
| https://github.com/ParisNeo/lollms-webui/blob/8c5dcef63d847bb3d027ec74915d8fe4afd3014e/lollms/server/endpoints/lollms_apps.py#L443-L450 | [email protected] | Product |
| https://github.com/ParisNeo/lollms-webui/security/advisories/GHSA-mcwr-5469-pxj4 | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| lollms lollms web ui | All versions |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 20, 2026 | Initial Analysis | [email protected] |
| Mar 24, 2026 | CVE Modified | CISA-ADP |
| Mar 24, 2026 | New CVE Received | [email protected] |