Back to vendor advisories
AWS Security Bulletins

Issues in tough library and tuftool CLI utility

Bulletin ID: 2026-019-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 2026/04/24 13:30 AM PDT Description: Multiple security issues have been identified in the tough library and tuftool CLI utility. tough is a Rust library used for generating, signing, and managing TUF (The Update Framework) repositories, and tuftool is the command-line interface for repository management Operations. The following issues have been identified: - CVE-2026-6966 - CVE-2026-6967 - CVE-2026-6968 Impacted versions: - tough: versions 0.1.0 through 0.21.x (inclusive) - tuftool: versions 0.1.0 through 0.14.x (inclusive) Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Not listedCVSS not listedNot listed severity
Scope

What the vendor says is affected

The collected bulletin did not provide a separate affected-products list. Check the original bulletin before making an exposure decision.

Next step

What the vendor recommends

tough is a Rust library used for generating, signing, and managing TUF (The Update Framework) repositories, and tuftool is the command-line interface for repository management Operations.

Review the complete instructions on the vendor's site
Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • The vendor changed the advisory's last-updated date.
Timeline

When this advisory changed

  1. Added to SecurityAlert

    We collected the advisory from the official source.

  2. Published by AWS

    The publication date reported by the vendor.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory