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VulnerabilityPublished

CVE-2026-54024: danny-avila LibreChat · Unthrottled Resource Allocation

Affects danny-avila LibreChatSource CVE Database V5

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Mentioned vulnerabilities

Not known to be exploited · CVSS 6.5 Medium : upgrade to 0.8.4-rc1 when convenient.

Data as of 7 Nov 2026, 23:24 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.8.4-rc1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.

What to do

Upgrade danny-avila LibreChat to 0.8.4-rc1.

Affected software

ProductAffectedFixed in
danny-avilaLibreChatAffected
  • <0.8.4-rc1
Fixed in
  • 0.8.4-rc1
GitHubdanny-avila/LibreChatpkg:github/danny-avila/LibreChatOther threatsAffected
  • =0.8.4-rc1
Fixed in–

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AI-suggested

A fix is available in LibreChat version 0.8.4-rc1, which adds file size limits to the import endpoint's file upload handler. Users should upgrade to version 0.8.4-rc1 or later to remediate this vulnerability. Patch status is not explicitly confirmed beyond this version, so verify with the vendor advisory for current guidance.

Description

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.

References

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