CVEvulnerability

CVE-2026-11972

8.2 HIGH Published 2026-06-23 Modified 2026-10-25 Official page ↗

Status: Awaiting Analysis
Published: 2026-06-23
Last modified: 2026-10-25
Assigner: [email protected]
CVSS 4.0 ([email protected]): 8.2 HIGH — 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
Weaknesses: CWE-252, CWE-606, CWE-770

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.

Weakness · CWE (3)

CWE-252 Unchecked Return Value weakness
CWE-606 Unchecked Input for Loop Condition weakness
CWE-770 Allocation of Resources Without Limits or Throttling weakness

References

https://github.com/python/cpython/commit/3f031d431f80668e14f3bc066bbf4369cd9281b9 github.com
https://github.com/python/cpython/commit/4ce6bf7c8aa7725828a38981c306f214c1f29365 github.com
https://github.com/python/cpython/commit/7f0dc59c9a70f8f3b4da33d7c4a2ba552a7acc21 github.com
https://github.com/python/cpython/commit/e86666c9dd256d52d0fbef6feb1ea4a51768fdec github.com
https://github.com/python/cpython/commit/eb63c0f94dfcbea7fda8eab6213818e134d67192 github.com
https://github.com/python/cpython/commit/f50bf13566189c8d0ce5a814f33eff3d89951896 github.com
https://github.com/python/cpython/commit/f5e2776ff0383a902c12acf2b703e7e951fc8438 github.com
https://github.com/python/cpython/issues/151981 github.com
https://github.com/python/cpython/pull/151982 github.com
https://mail.python.org/archives/list/[email protected]/thread/AXPSKKTSRKXTTJULW3XSIC74WZNAAPPB/ mail.python.org

CVE-2026-11972

Description

Related

Weakness · CWE (3)

References