CVE-2026-6966

HIGH

5.3CVSS v3

—CVSS v2

0.28% EPSS (exploit probability)

CWE-347CWE

Description

Improper verification of cryptographic signature uniqueness in delegated role validation in awslabs/tough before tough-v0.22.0 allows remote authenticated users to bypass the TUF signature threshold requirement by duplicating a valid signature, causing the client to accept forged delegated role metadata.

We recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.

CVSS v3 vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected routers (0)

No routers currently mapped to this CVE in our database.

External references

NIST NVD
MITRE CVE