VULNERABILITY INTELLIGENCE

CVE-2020-15957

CVSS score7.5 HIGH
EPSS probability1.36%
CISA KEVNot currently listed
Published2020-07-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Weakness classification

  • nvd@nist.gov: CWE-347

Primary references