CVE-2026-6968
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
7.1
(v4.0)
Vulnerability status
Modified
Source identifier
ff89ba41-3aa1-4d27-914a-91399e9639e5
Published
2026-04-24 20:16:29.170000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
"id": "CVE-2026-6968",
"sourceIdentifier": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
"published": "2026-04-24T20:16:29.170",
"lastModified": "2026-10-26T21:10:00.170",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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.\n\n\n\nWe recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0."
},
{
"lang": "es",
"value": "Correcciones incompletas de salto de ruta en awslabs/tough en versiones anteriores a tough-v0.22.0 permiten a usuarios remotos autenticados con autoridad de firma delegada escribir archivos fuera de los directorios de salida previstos mediante nombres de destino absolutos en copy_target/link_target, directorios padre con enlaces simbólicos en save_target, o nombres de archivo de metadatos con enlaces simbólicos en SignedRole::write, porque las rutas de escritura confían en la ruta de destino unida sin verificación de contención posterior a la resolución.\n\nRecomendamos actualizar a tough-v0.22.0 / tuftool-v0.15.0."
}
],
"affected": [
{
"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
"affectedData": [
{
"vendor": "AWS",
"product": "tough",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "0.22.0",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "AWS",
"product": "tuftool",
"defaultStatus": "unaffected",
"versions": [
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"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
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"vectorString": "CVSS: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",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "HIGH",
"subAvailabilityImpact": "LOW",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
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"cvssMetricV31": [
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"scope": "UNCHANGED",
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"availabilityImpact": "LOW"
},
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},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
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"availabilityImpact": "NONE"
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"ssvcV203": [
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"id": "CVE-2026-6968",
"options": [
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{
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"weaknesses": [
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"value": "CWE-22"
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"configurations": [
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"nodes": [
{
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"negate": false,
"cpeMatch": [
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"references": [
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"url": "https://aws.amazon.com/security/security-bulletins/2026-019-aws/",
"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
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{
"url": "https://crates.io/crates/tough/0.22.0",
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"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
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}