tarfile.data_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() to write files outside the destination directory, subject to the permissions of the extracting process.
{
"cna_assigner": "PSF",
"cwe_ids": [
"CWE-22"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7774.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.10.21"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "3.11.0"
},
{
"fixed": "3.11.16"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "3.12.0"
},
{
"fixed": "3.12.14"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "3.13.0"
},
{
"fixed": "3.13.14"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "3.14.0"
},
{
"fixed": "3.14.6"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "3.15.0a1"
},
{
"fixed": "3.15.0b2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "0478bd83d82b255e0f29f613367a59d261e7eaa2"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "0d28f5e46e151718972dfabd91205444d0037b6d"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "578411982c16f753f4893532510099ef665117da"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "5cf47a248c35c375d610b87b2f72fd1ed454b558"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "74cca9a92fb7d653e404843a56b8bdc7b0afdbbf"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "10a13bee3c24f9c62b602e696334ff2272a40efc"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "c063191cb7f9170f9565e305f8aa2b79ab2bf609"
}
],
"source": "REFERENCES_COMMIT"
}
]
}