hashi-vault-js has a path traversal and query parameter injection
Priority MEDIUM 44CWE-23Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-23 and the CVSS impact.
Summary
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 it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0056 46th percentileScored 2026-11-07
Fix Fixed hashi-vault-js (kyndryl-open-source): 0.5.2hashi-vault-js (npm): 0.5.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| kyndryl-open-source | hashi-vault-js | before 0.5.2 | 0.5.2 | Patch available | CNA |
| — | hashi-vault-js (npm) | before 0.5.2 | 0.5.2 | Patch available | GHSA-g956-2f74-rmv7 |
- hashi-vault-js Vendorkyndryl-open-source Affected before 0.5.2 Fixed in 0.5.2 Patch available CNA
- hashi-vault-js (npm) Vendor— Affected before 0.5.2 Fixed in 0.5.2 Patch available GHSA-g956-2f74-rmv7
Remediation
- Fix · CNA hashi-vault-js (kyndryl-open-source) Fixed in 0.5.2
- Fix · GHSA-g956-2f74-rmv7 hashi-vault-js (npm) Fixed in 0.5.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-55100
- 2026-10-03 Alias added: GHSA-g956-2f74-rmv7
References
Other 5
- https://github.com/kyndryl-open-source/hashi-vault-js/security/advisories/GHSA-g956-2f74-rmv7
- https://github.com/kyndryl-open-source/hashi-vault-js/pull/66
- https://github.com/kyndryl-open-source/hashi-vault-js/commit/ea2f76052d366a08f35f62ef4c12b6a334c91ec2
- https://github.com/kyndryl-open-source/hashi-vault-js/releases/tag/v0.5.2
- https://github.com/kyndryl-open-source/hashi-vault-js
More kyndryl-open-source vulnerabilities
- TI-2026-39803 hashi-vault-js: Vault token and secret values exposed in thrown errors CVSS 4.0MEDIUM 5.8
Sources
- CVE-2026-55100 · CVE Program
- CVE-2026-55100 · NVD
- FIRST EPSS
- GHSA-g956-2f74-rmv7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences