by Kastro
Paper/Archive/CVE-2026-21440

CVE-2026-21440

adonisjs core — AdonisJS Path Traversal in Multipart File Handling

EPSS 1%CVSS 9.2
critical.is priorityof 100
40
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 63.8.638 × 2012.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
core< 10.1.2–CNA
core>= 11.0.0-next.0, < 11.0.0-next.6–CNA

Scores by source

GitHub_M (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/adonisjs/core/security/advisories/GHSA-gvq6-hvvp-h34hrefgithub.com/adonisjs/bodyparser/commit/143a16f35602be8561215611582211dec280cae6refgithub.com/adonisjs/bodyparser/commit/6795c0e3fa824ae275bbd992aae60609e96f0f03refgithub.com/adonisjs/bodyparser/releases/tag/v10.1.2refgithub.com/adonisjs/bodyparser/releases/tag/v11.0.0-next.6