Vulnerability · Published Jun 2, 2026 · Assigned by GitHub_M

CVE-2026-44654LibreChat: Shared-agent editor can globally delete owner's file records — breaks owner's other private agents

Medium 5.7

In plain English

A medium-severity incorrect authorization in LibreChat from danny-avila. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 4.0)5.7Medium

Exploit odds (30 days)0.3%top 81.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
danny-avila	LibreChat	< 0.8.5

Weakness: CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

References

https://github.com/danny-avila/LibreChat/security/advisories/GHSA-f8jg-v856-mf6q x_refsource_CONFIRM