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 (6)
Core 6
Core References
Vendor Advisory vendor-advisory
https://aws.amazon.com/security/security-bulletins/2026-019-aws/
Patch patch
https://crates.io/crates/tough/0.22.0
Patch patch
https://crates.io/crates/tuftool/0.15.0
Third Party Advisory third-party-advisory
https://github.com/awslabs/tough/security/advisories/GHSA-v57p-gppj-p9vg
Scores
CVSS v3
5.9
EPSS
0.0043
EPSS Percentile
34.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (4)
amazon/tough
0.9.0 - 0.22.0
amazon/tuftool
< 0.15.0
AWS/tough
0.22.0
AWS/tuftool
0.15.0
Published
Apr 24, 2026
Tracked Since
Apr 24, 2026