CVE-2026-44654
highpriority · track · 32OT risk · elevatedEPSS 0.003 · 18 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.1–8.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (4)
External citations — patches, advisories, analysis.
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-f8jg-v856-mf6qcnnvd
- https://www.librechat.ai/changelogPatchcnnvd
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-f8jg-v856-mf6qenisa_euvd
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-f8jg-v856-mf6qExploitVendor Advisorynvd
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