CVE-2026-54024

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 83% 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, secondary
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the fix for CVE-2024-11171 (commit bb58a2d0) added limits: { fileSize } to createMulterInstance() in the file upload routes. However, the POST /api/convos/import endpoint uses a separate multer instance that was never updated with the same limits configuration. Combined with the application-level size check being disabled by default (the CONVERSATION_IMPORT_MAX_FILE_SIZE_BYTES env var is commented out in .env.example), an authenticated user can upload arbitrarily large files to exhaust server disk space and memory. This vulnerability is fixed in 0.8.4-rc1.

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
16.6%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 25, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Incomplete Fix for CVE-2024-11171 — Conversation Import Multer Instance Missing File Size Limits · Advisory · danny-avila/LibreChat · GitHub

https://github.com/danny-avila/LibreChat/security/advisories/GHSA-52f6-fqwv-jccf

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 10:14 UTCEG score recompute
  2. 2026-07-13 06:13 UTCEPSS rescore
  3. 2026-07-13 06:13 UTCEPSS rescore
  4. 2026-07-12 11:54 UTCEG score recompute
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-11 13:35 UTCEG score recompute
  7. 2026-07-11 08:27 UTCEPSS rescore
  8. 2026-07-11 08:27 UTCEPSS rescore
  9. 2026-07-10 15:13 UTCEG score recompute
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-09 16:53 UTCEG score recompute
  13. 2026-07-08 18:34 UTCEG score recompute
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-08 15:16 UTCEPSS rescore
  16. 2026-07-07 20:14 UTCEG score recompute
  17. 2026-07-07 13:46 UTCEPSS rescore
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-06 21:55 UTCEG score recompute
  20. 2026-07-06 16:27 UTCEPSS rescore
  21. 2026-07-06 16:27 UTCEPSS rescore
  22. 2026-07-06 02:23 UTCEPSS rescore
  23. 2026-07-06 02:23 UTCEPSS rescore
  24. 2026-07-05 23:36 UTCEG score recompute
  25. 2026-07-05 02:31 UTCEPSS rescore
Show 23 more
  1. 2026-07-05 02:30 UTCEPSS rescore
  2. 2026-07-05 01:17 UTCEG score recompute
  3. 2026-07-04 06:31 UTCEPSS rescore
  4. 2026-07-04 06:31 UTCEPSS rescore
  5. 2026-07-04 02:58 UTCEG score recompute
  6. 2026-07-03 04:24 UTCEG score recompute
  7. 2026-07-02 06:04 UTCEG score recompute
  8. 2026-07-01 15:07 UTCEPSS rescore
  9. 2026-07-01 07:45 UTCEG score recompute
  10. 2026-06-30 23:22 UTCEPSS rescore
  11. 2026-06-30 09:26 UTCEG score recompute
  12. 2026-06-29 14:06 UTCEPSS rescore
  13. 2026-06-29 14:06 UTCEPSS rescore
  14. 2026-06-29 11:08 UTCEG score recompute
  15. 2026-06-28 14:07 UTCEPSS rescore
  16. 2026-06-28 12:49 UTCEG score recompute
  17. 2026-06-28 04:56 UTCEPSS rescore
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-27 14:30 UTCEG score recompute
  20. 2026-06-27 03:08 UTCEPSS rescore
  21. 2026-06-26 16:10 UTCEG score recompute
  22. 2026-06-25 17:52 UTCEG score recompute
  23. 2026-06-25 17:48 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-54024?
CVE-2026-54024 is a medium vulnerability published on June 25, 2026. LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the fix for CVE-2024-11171 (commit bb58a2d0) added limits: { fileSize } to createMulterInstance() in the file upload routes. However, the POST /api/convos/import endpoint uses a separate multer instance…
When was CVE-2026-54024 disclosed?
CVE-2026-54024 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54024 actively exploited?
CVE-2026-54024 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54024?
CVE-2026-54024 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-54024?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54024, 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

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