CVE-2026-41164
MEDIUM EPSS 0.2%
Published May 26, 20261mo ago · Modified Jun 17, 20262w ago
4.4 CVSS 3.1
Published May 26, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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
Threat Intelligence
EPSS Exploit Probability
0.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-345
References 1
- github.com https://github.com/nuts-foundation/nuts-node/security/advisories/GHSA-9hmg-827w-9rhj
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.