CVE-2026-19194
Received
Received - Intake
JWT Claims Validation Bypass in HashiCorp cap Library
Vulnerability report for CVE-2026-19194, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-13
Last updated on: 2026-11-13
Assigner: HashiCorp Inc.
Description
Description
The HashiCorp cap JWT validation library before version 0.14.0 is vulnerable to a claims validation bypass that may cause downstream applications to make authorization decisions using claim values different from those validated. Exploitation requires attacker-controlled claims in a JWT signed by a key trusted by the application. This vulnerability (CVE-2026-19194) is fixed in cap 0.14.0.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| HashiCorp | Shared library | From 0 (inc) to 0.14.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-178 | The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results. |
