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CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run Oct 26 02:05 UTC

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Expand	Severity	Score	Advisory	Title	Source	Flags	Published
	Medium	6.9	CVE-2026-114583	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... PythonPython CPython, Python tarfile	NVD		Oct 22 21:17 UTC
CVE-2026-114583tarfile.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... Executive summary The advisory describes a flaw in Python's tarfile module, specifically the tar_filter extraction filter, which could be bypassed with crafted link entries so that later archive members are redirected outside the intended destination directory. The advisory text does not state a severity rating or CVSS score. The fix adds a check so tar_filter rejects link members that refer to the destination directory itself. Technical summary The weakness is a path traversal issue in tarfile.tar_filter, reached by crafted link entries, including symlinks or hard links with empty or directory-like names, that can redirect later archive members outside the destination. The attack requires a victim to extract a crafted tar archive using the tar_filter extraction filter. The change adds a check that raises OutsideDestinationError for hard or soft link members whose normalized name is the current directory, and the previous destination-equals check was moved and applied to the tar filter as well as the data filter. The advisory does not state affected version ranges or fixed version numbers, and it does not state any workaround. No detection guidance is stated, and it is not stated whether exploitation has been observed in the wild. Summaries are generated by AI from the linked advisory text. Confirm versions and fixes at the source. Summarized from github.com/python/cpython/commit/04d8fc…1fec8a53a1330c3b665d Impact if exploited ConfidentialityNone IntegrityHigh AvailabilityNone How it is exploited Attack vector Local Attack complexity Low Attack requirements None Privileges required None User interaction None CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/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 Affects Python Python CPython Python tarfile NIST National Vulnerability DatabasePublished Oct 22, 2026 21:17 UTC Read the advisory

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