8.2

CVE-2026-11972

tarfile opened in streaming mode mishandles EOF

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerPython Software Foundation
≫
Produkt CPython
Default Statusunaffected
Version 0
Version < 3.15.0
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.43% 0.347
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@python.org 8.2 0 0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/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
CWE-252 Unchecked Return Value

The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

CWE-606 Unchecked Input for Loop Condition

The product does not properly check inputs that are used for loop conditions, potentially leading to a denial of service or other consequences because of excessive looping.

CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

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/e86666c9dd256d52d0fbef6feb1ea4a51768fdec
https://github.com/python/cpython/commit/f50bf13566189c8d0ce5a814f33eff3d89951896
https://github.com/python/cpython/commit/7f0dc59c9a70f8f3b4da33d7c4a2ba552a7acc21
https://github.com/python/cpython/commit/eb63c0f94dfcbea7fda8eab6213818e134d67192