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.
CVE-2026-44654
HIGHNVD 8.18.1—Elevated
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.1
- EG Score
- 8.1(medium)
- EPSS
- 18.0%
- KEV
- Not listed
Published
June 2, 2026
Last Modified
June 4, 2026
Advisory Details (1)
Auto-updated Jun 4, 2026🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available
Shared-agent editor can globally delete owner's file records — breaks owner's other private agents · Advisory · danny-avila/LibreChat · GitHub
https://github.com/danny-avila/LibreChat/security/advisories/GHSA-f8jg-v856-mf6qWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Related CVEs(same CWE)
Same CWE
10 shownCWE-863
Frequently asked(5)
What is CVE-2026-44654?
CVE-2026-44654 is a high vulnerability published on June 2, 2026. 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…
When was CVE-2026-44654 disclosed?
CVE-2026-44654 was first published in the National Vulnerability Database on June 2, 2026, with the most recent update on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44654 actively exploited?
CVE-2026-44654 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 18.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44654?
CVE-2026-44654 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-44654?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44654, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-44654
Is Your Infrastructure Affected by CVE-2026-44654?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.