CVE-2026-6967

MEDIUM

Missing Delegated Metadata Validation in awslabs/tough

Title source: cna
STIX 2.1

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.

References (6)

Scores

CVSS v3 5.9
EPSS 0.0003
EPSS Percentile 7.4%
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-345
Status published
Products (2)
AWS/tough 0.22.0
AWS/tuftool 0.15.0
Published Apr 24, 2026
Tracked Since Apr 24, 2026