by Kastro
Paper/Archive/CVE-2026-33340

CVE-2026-33340

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

EPSS 22%public exploitCVSS 9.1
critical.is priorityof 100
57
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 97.6.976 × 2019.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
lollms-webui<= 8c5dcef63d847bb3d027ec74915d8fe4afd3014e–CNA

Scores by source

GitHub_M (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/ParisNeo/lollms-webui/security/advisories/GHSA-mcwr-5469-pxj4refgithub.com/ParisNeo/lollms-webui/blob/8c5dcef63d847bb3d027ec74915d8fe4afd3014e/lollms/server/endpoints/lollms_apps.py#L443-L450