CVE-2026-6968

Description

Incomplete path traversal fixes in awslabs/tough before tough-v0.22.0 allow remote authenticated users with delegated signing authority to write files outside intended output directories via absolute target names in copy_target/link_target, symlinked parent directories in save_target, or symlinked metadata filenames in SignedRole::write, because write paths trust the joined destination path without post-resolution containment verification. We recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.

References

• https://aws.amazon.com/security/security-bulletins/2026-019-aws/
• https://crates.io/crates/tough/0.22.0
• https://crates.io/crates/tuftool/0.15.0
• https://github.com/awslabs/tough/releases/tag/tough-v0.22.0
• https://github.com/awslabs/tough/releases/tag/tuftool-v0.15.0