CVE catalog

CVE-2026-6967

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

[CVE catalog]

Severity
High · CVSS 7.1CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
Source
[NVD] · [CVE record]
EPSS
0.25% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
CpetoughNot reported0.22.0fixed
CpetuftoolNot reported0.15.0fixed
CpetoughNot reported0.22.0fixed
CpetuftoolNot reported0.15.0fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
CpetoughcpeNot reported0.22.0Not reportedNot reportedNot reported
CpetuftoolcpeNot reported0.15.0Not reportedNot reportedNot reported
CpetoughcpeNot reported0.22.0Not reportedNVD-CVE-2026-6967Not reported
CpetuftoolcpeNot reported0.15.0Not reportedNVD-CVE-2026-6967Not reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References

[FIRST EPSS] · [National Vulnerability Database (NVD)]