CVE-2026-6967

MediumCVSS 6.5/10Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-345

Affected software

VendorProductVersions
AWStough>= 0.9.0, <= 0.21
AWStuftool<= 0.14

References

Timeline

Published
Apr 24, 2026
Last modified
Oct 26, 2026
NVD status
Modified

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CVE-2026-6967: Medium severity, CVSS 6.5 | Vulnix