5.3
Medium
CVE-2026-6966 Improper verification of cryptographic signature uniqueness in delegated role validation in awslabs/tough before…
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.
Affected products and versions
Other CVEs of tough
The 7 CVEs of tough →
CVE-2026-6968
Incomplete path traversal fixes in awslabs/tough before tough-v0.22.0 allow remote authenticated users with delegated…
5.9
Medium
CVE-2026-6967
Missing expiration, hash, and length enforcement in delegated metadata validation in awslabs/tough before…
5.9
Medium
CVE-2025-2888
During a snapshot rollback, the client incorrectly caches the timestamp metadata
5.7
Medium
CVE-2025-2887
During a target rollback, the client fails to detect the rollback for delegated targets
5.7
Medium