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CVE-2026-41164

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CVE-2026-41164

Published: May 26, 2026

Modified: May 27, 2026

PUBLISHED

CVSS v3.1

4.4

MEDIUM

Description

nuts-node is the reference implementation of the Nuts specification. Prior to 6.2.3 and 5.4.31, the v1 access token introspection endpoint (/auth/v1/introspect_access_token) accepts any JWT signed by a key present on the node, without validating the JWT type, issuer-to-key binding, or required claims. This allows a Verifiable Presentation (VP) JWT to be replayed as an access token and receive an active: true introspection response. This vulnerability is fixed in 6.2.3 and 5.4.31.

VendorProductVersions

nuts-foundation

nuts-node

affected
>= 6.0.0-alpha.1, < 6.2.3
affected
< 5.4.31

Weaknesses (CWE)

CWE-345

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

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