CVE-2026-55100: hashi-vault-js is a Node.js module for interacting with the HashiCorp Vault API

This month

HIGH 8.7REMOTE

CVE-2026-55100 is a high-severity flaw (CVSS 8.7) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

hashi-vault-js is a Node.js module for interacting with the HashiCorp Vault API. Prior to 0.5.2, src/Vault.js concatenates unencoded identifier values including name, username, group, role, and version into Vault request paths and query strings instead of using encodeURIComponent() and URLSearchParams, allowing path traversal and query parameter injection. This issue is fixed in version 0.5.2.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-23, CWE-74
Published	2026-07-31
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc.

Timeline

2026-07-31 18:17 UTCPublished CVE record published
2026-10-23 23:10 UTCUpdated Record last modified

Exact fixes by distribution

npm · hashi-vault-js · FIXED · 0.5.2 · vulnerable: <= 0.5.1 · source

npm install hashi-vault-js@">=0.5.2" npm ls hashi-vault-js

Fedora 46 · python-trimesh · FIXED · 5.2.0-1.fc46 · FEDORA-2026-429b4bad4c · source

sudo dnf upgrade --advisory=FEDORA-2026-429b4bad4c

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

References

← Back to latest CVEs