HIGH SeverityCVSS 4.07.1CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:L

CVE-2026-6968

Last updated Apr 24, 2026 · Published Apr 24, 2026

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.

Affected products

1 listed

AWS:tough; AWS:tuftool

Mappings

CWE

CWE-22

CAPEC

CAPEC-126

Research

Path traversal: how to detect and prevent itPath traversal lets attackers read or write files outside intended directories. Normalise paths, resolve them…

Training

Secure File HandlingUploads, storage, and serving files without opening the door to attackers.