EUVD-2026-77772
GHSA-ghff-gcpf-9r9p
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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
Primary rating from Vendor (python) · only source for this CVE.
CVSS VectorVendor: python
Lifecycle Timeline
4DescriptionCVE.org
In CPython 3.13 and earlier, the tarfile module's data and tar extraction filters are vulnerable to crafted archives containing a hard link to a symbolic link. Such archives may cause extraction to modify the permissions or modification time of a file outside the destination directory, or expose the contents of that file within the extracted tree.
AnalysisAI
Let me synthesize the analysis. Key facts: - CVE-2026-82049: CPython tarfile module's data and tar extraction filters vulnerable to crafted archives containing a hard link to a symbolic link. …
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Same weakness CWE-59 – Improper Link Resolution Before File Access
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External POC / Exploit Code
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