Description
An issue was discovered in DP3T-Backend-SDK before 1.1.1 for Decentralised Privacy-Preserving Proximity Tracing (DP3T). When it is configured to check JWT before uploading/publishing keys, it is possible to skip the signature check by providing a JWT token with alg=none.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://github.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0Release Notes, Third Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3Patch, Third Party Advisory
- https://github.com/dp-3T/dp3t-sdk-backendThird Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0Release Notes, Third Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3Patch, Third Party Advisory
- https://github.com/dp-3T/dp3t-sdk-backendThird Party Advisory
Timeline
- Published
- Jul 30, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified