CVE-2026-33340CRITICAL 9.1EPSS p97.3%

CVE-2026-33340CVE-2026-33340

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS21.63% probability of exploitation · percentile 97.3% · 2026-06-19T12:03:05Z
Published2026-03-24
Last modified2026-04-20

Underlying weaknesses· 2

CWE-306CWE-918

References

  1. https://github.com/ParisNeo/lollms-webui/blob/8c5dcef63d847bb3d027ec74915d8fe4afd3014e/lollms/server/endpoints/lollms_apps.py#L443-L450
  2. https://github.com/ParisNeo/lollms-webui/security/advisories/GHSA-mcwr-5469-pxj4
  3. https://github.com/ParisNeo/lollms-webui/security/advisories/GHSA-mcwr-5469-pxj4

2

TypeTargetConfidenceTier
WeaknessMissing Authentication for Critical Functioncwe-3060%live
WeaknessServer-Side Request Forgery (SSRF)cwe-9180%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.