CVE-2026-11972
tarfile opened in streaming mode mishandles EOF
Description
When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer.
No summary for this CVE yet.
Weaknesses
Affected Products
Python Software Foundation
oss-project·USaka psf
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Attack Graph
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MITRE ATT&CK
1 technique Impact
References
https://github.com/python/cpython/issues/151981
github.com
https://github.com/python/cpython/pull/151982
github.com
https://mail.python.org/archives/list/security-announce@python.org/thread/AXPSKKTSRKXTTJULW3XSIC74WZNAAPPB/
mail.python.org
and 7 more references View all →
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