CVE-2026-6967
Medium
Description
Missing expiration, hash, and length enforcement in delegated metadata validation in awslabs/tough before tough-v0.22.0 allows remote authenticated users with delegated signing authority to bypass TUF specification integrity checks for delegated targets metadata and poison the local metadata cache, because load_delegations does not apply the same validation checks as the top-level targets metadata path. We recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.
SeverityMedium
CVSS5.9
Exploit probability—
ProductAmazon Tough
PublishedApr 24, 2026
First seenApr 24, 2026
Weakness typeCWE-345CWE-345
How to fix
Update
- amazon tough0.22.0 or later
- amazon tuftool0.15.0 or later
Patches
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| amazon tough | 0.9.0 ≤ v < 0.22.0 | 0.22.0 |
| amazon tuftool | v < 0.15.0 | 0.15.0 |
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