Dashboard / CVE-2026-54033

CVE-2026-54033

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-06-25 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: None
A: None

Description

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, LibreChat allows users to configure custom OpenAI-compatible API endpoints by setting a baseURL. This URL is used to construct HTTP requests without any SSRF validation — no private IP check, no scheme restriction, no DNS pinning. An authenticated user can set baseURL to internal network addresses. This vulnerability is fixed in 0.8.4-rc1.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
librechat librechat < 0.8.3

References & Advisories (1)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.35%
Raw Score 0.003520
Percentile 28.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00352
2026-10-28
0.00352

Intelligence Sources

nvd ref →

External Links