Is CVE-2026-33340 in the CISA KEV catalog?

No. CVE-2026-33340 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-33340?

CVE-2026-33340 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2026-33340?

CVE-2026-33340 has an EPSS score of 21.63% (97th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-33340?

No published fix for CVE-2026-33340 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-33340

CRITICALEPSS 97th pctl

9.1

CVSS v3

NVD

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.

CWE-306Missing Authentication for Critical Function CWE-918Server-Side Request Forgery (SSRF)

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

21.63%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Exploit1

github.com

Product1

github.com

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2025-3248	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-20.