CVE-2026-114583 (GCVE-0-2026-114583)
Vulnerability from cvelistv5 – Published: 2026-10-22 20:57 – Updated: 2026-10-23 00:36
VLAI
EPSS
VEX
Title
tar filter allows writing outside destination via empty-named symlink
Summary
tarfile.tar_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() with filter="tar" to write files outside the destination directory, subject to the permissions of the extracting process.
This is the tarfile.tar_filter counterpart of CVE-2026-7774, which covered tarfile.data_filter.
Severity
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.16.0
(python)
|
guessed |
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{
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"value": "Ethan Furman (https://github.com/ethanfurman)"
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}
],
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}
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"Recovery": "NOT_DEFINED",
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"url": "https://github.com/python/cpython/pull/160098"
},
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"url": "https://github.com/python/cpython/issues/160097"
},
{
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/43JOWPRAV5DI3VZ4FUEUAZOHCATXXOCK/"
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},
"title": "tar filter allows writing outside destination via empty-named symlink",
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"datePublished": "2026-10-22T20:57:36.019Z",
"dateReserved": "2026-10-21T18:58:26.985Z",
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}
],
"id": "CVE-2026-114583",
"lastModified": "2026-10-23T01:16:53.540",
"metrics": {
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"Recovery": "NOT_DEFINED",
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"modifiedPrivilegesRequired": "NOT_DEFINED",
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"references": [
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}
}
}
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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