CVE-2026-11940
tarfile.extractall() with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name than the hardlink itself. The extraction fallback validated the symlink at it's archived location but recreated it at the hardlink's shallower path, letting a relative target the filter judged contained escape the destination directory. This allowed a malicious tar archive to create a symlink pointing outside the destination, enabling out-of-destination file reads or writes. This was an incomplete fix of CVE-2025-4330.
- Affected products
- Rocky Linux, Tarfile
- CVSS 4.0
- 7.8 HIGH
- EPSS
- 0.8% (53th percentile)
- Weakness
- CWE-22, CWE-59
- NVD status
- Awaiting Analysis
- Published
- 2026-06-23
No indexed exploits for CVE-2026-11940 yet
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No exploit for CVE-2026-11940 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.