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.
{
"cna_assigner": "AMZN",
"cwe_ids": [
"CWE-345"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6967.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:amazon:tough:*:*:*:*:*:rust:*:*",
"range": [
{
"introduced": "0.9.0"
},
{
"fixed": "0.22.0"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:amazon:tuftool:*:*:*:*:*:rust:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.15.0"
}
],
"source": "CPE_RANGE"
},
{
"original_tag": "tough-v0.22.0",
"range": [
{
"fixed": "606dc87a8456c8f6e24c4a85e12b280cf2c9ca00"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "tuftool-v0.15.0",
"range": [
{
"fixed": "606dc87a8456c8f6e24c4a85e12b280cf2c9ca00"
}
],
"source": "REFERENCES_TAG"
}
]
}