CVE-2026-21440

AdonisJS Path Traversal in Multipart File Handling

State
Published
Severity
9.2 Critical
Published
Jan 2, 2026
Updated
Jan 5, 2026
Reserved
Dec 29, 2025

Read the record on cve.org

Description

AdonisJS is a TypeScript-first web framework. A Path Traversal vulnerability in AdonisJS multipart file handling may allow a remote attacker to write arbitrary files to arbitrary locations on the server filesystem. This impacts @adonisjs/bodyparser through version 10.1.1 and 11.x prerelease versions prior to 11.0.0-next.6. This issue has been patched in @adonisjs/bodyparser versions 10.1.2 and 11.0.0-next.6.

Scores

CVSSScoreVectorSource
4.09.2 CriticalCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NGitHub_M

Weaknesses

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

ProductVersions
coreadonisjs
  • < 10.1.2Affected
  • >= 11.0.0-next.0, < 11.0.0-next.6Affected

References

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