Description
When using a TarFile.errorlevel = 0 and extracting with a filter the documented behavior is that any filtered members would be skipped and not extracted. However the actual behavior of TarFile.errorlevel = 0 in affected versions is that the member would still be extracted and not skipped.
References10
- github.com/python/cpython/commit/19de092debb3d7e832e5672cc2f7b7…
- github.com/python/cpython/commit/28463dba112af719df1e8b0391c467…
- github.com/python/cpython/commit/3612d8f51741b11f36f8fb0494d790…
- github.com/python/cpython/commit/4633f3f497b1ff70e4a35b6fe2c907…
- github.com/python/cpython/commit/9c1110ef6652687d7c55f590f90972…
- github.com/python/cpython/commit/9e0ac76d96cf80b49055f6d6b9a676…
- github.com/python/cpython/commit/aa9eb5f757ceff461e6e996f12c89e…
- github.com/python/cpython/commit/dd8f187d0746da151e0025c5168097…
- github.com/python/cpython/issues/135034
- github.com/python/cpython/pull/135037
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - EPSS — exploit probability
- 1% percentile: 50 · as of 7 November 2026
- CWE
- CWE-682
Could this be exploited in your environment?
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