CVE-2026-33340CWE-306CWE-918

LoLLMs WEBUI has unauthenticated Server-Side Request Forgery (SSRF) in /api/proxy endpoint

Critical · published March 24, 2026

CVSS v3.1
9.1
EPSS
2%
Percentile
76.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.01662 · 76.5th percentile
Weaknesses
CWE-306 · Missing Authentication for Critical Function; CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-03-24T15:58Z
EPSS history
Timeline
  • 25 SEP 03:25Z
    EPSS moved 22% → 2%
    epss
  • 24 MAR 15:58Z
    LoLLMs WEBUI has unauthenticated Server-Side Request Forgery (SSRF) in /api/proxy endpoint
    cvelistv5