PT-2026-45883 · Danny Avila · Librechat

Published 2026-06-02 · Updated 2026-06-02 · CVE-2026-44654

NVD

CVSS v4.0

5.7

Medium

Base vector

AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, a shared-agent editor can delete file records through DELETE /api/files that the owner has reused across multiple agents. The deletion removes the file globally — not just from the shared agent — breaking the owner's other private agents that reference the same file id. The private agent retains a stale file id reference that no longer resolves. A shared-agent editor can destroy files that the owner uses across multiple agents. The owner's private agents — which the attacker has no access to — break silently with stale file id references. This is a cross-agent integrity violation: editing access to one agent should not affect another. Version 0.8.4 contains a patch.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-44654

Affected Products

Librechat

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-44654 · Security Note
• https://github.com/danny-avila/LibreChat/security/advisories/GHSA-f8jg-v856-mf6q · Note