CVE-2026-55102hashi-vault-js: Vault token and secret values exposed in thrown errors
Updated under an hour ago ()
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It affects kyndryl-open-source hashi-vault-js. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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hashi-vault-js is a Node.js module for interacting with the HashiCorp Vault API. Prior to 0.5.2, every API method in src/Vault.js passes failed requests through parseAxiosError(), which rethrows the raw AxiosError while retaining AxiosError.config and the equivalent response configuration. These objects can contain the X-Vault-Token request header and err.config.data request body, including submitted passwords or secret values. When a consuming application records the caught exception through console logging, structured loggers, monitoring, crash reporting, or an application performance monitoring service, the live Vault token and request secrets can be stored in plaintext and exposed to anyone with access to that output. A stolen token can permit unauthorized access to the Vault instance under the token's policies. This issue is fixed in version 0.5.2.
- CVSS
- 5.8 MEDIUM (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N
- Weakness (CWE)
- CWE-209, CWE-532
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
kyndryl-open-source hashi-vault-js kyndryl_open_source:hashi_vault_js (from the name) | before 0.5.2 | CNA record |
References
- https://github.com/kyndryl-open-source/hashi-vault-js/security/advisories/GHSA-5pq8-3ffp-7w5mx-refsource-confirm
- https://github.com/kyndryl-open-source/hashi-vault-js/pull/67x-refsource-misc
- https://github.com/kyndryl-open-source/hashi-vault-js/commit/ed0797a2d09c1fe0fd20764dde66cbc29241d9fbx-refsource-misc
- https://github.com/kyndryl-open-source/hashi-vault-js/releases/tag/v0.5.2x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.