CVE-2026-44654 LibreChat: Shared-agent editor can globally delete owner's file records — breaks owner's other private agents
A shared-agent editor can globally delete files used by the owner's private agents, causing those agents to break due to missing file references.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44654?
CVE-2026-44654 is a medium-severity missing authorization vulnerability in Librechat Librechat, published on 2 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-863
Which versions are affected by CVE-2026-44654?
It affects 1 product.
Products include Librechat Librechat.
How do I fix CVE-2026-44654?
No fix has been published for CVE-2026-44654 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-44654 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44654 exists.
Other vulnerabilities in Librechat Librechat
- CVE-2026-32625 LibreChat Exfiltrates Server Secrets via MCP Server URL Injection
- CVE-2024-11167 Improper Access Control in danny-avila/librechat
- CVE-2026-22252 LibreChat MCP Stdio Remote Command Execution
- CVE-2025-69222 LibreChat is vulnerable to Server-Side Request Forgery due to missing restrictions
- CVE-2024-41704 Path traversal in n/a
Sources
Also known as GHSA-f8jg-v856-mf6q.