CVE-2026-11972 | BDVDB-2026-342227 Detail
Python Software FoundationCPython
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.
Impact#
Per CVSS v4.0: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.
Weaknesses#
References#
- https://github.com/python/cpython/issues/151981
- https://github.com/python/cpython/pull/151982
- https://mail.python.org/archives/list/security-announce@python.org/thread/AXPSKKTSRKXTTJULW3XSIC74WZNAAPPB/
- https://github.com/python/cpython/commit/3f031d431f80668e14f3bc066bbf4369cd9281b9
- https://github.com/python/cpython/commit/4ce6bf7c8aa7725828a38981c306f214c1f29365
- https://github.com/python/cpython/commit/7f0dc59c9a70f8f3b4da33d7c4a2ba552a7acc21
- https://github.com/python/cpython/commit/e86666c9dd256d52d0fbef6feb1ea4a51768fdec
- https://github.com/python/cpython/commit/eb63c0f94dfcbea7fda8eab6213818e134d67192
- https://github.com/python/cpython/commit/f50bf13566189c8d0ce5a814f33eff3d89951896
- https://github.com/python/cpython/commit/f5e2776ff0383a902c12acf2b703e7e951fc8438
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.