Vulnerability 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.
Related Weaknesses (CWE)
References
- https://github.com/python/cpython/commit/3f031d431f80668e14f3bc066bbf4369cd9281b
- https://github.com/python/cpython/commit/4ce6bf7c8aa7725828a38981c306f214c1f2936
- https://github.com/python/cpython/commit/7f0dc59c9a70f8f3b4da33d7c4a2ba552a7acc2
- https://github.com/python/cpython/commit/e86666c9dd256d52d0fbef6feb1ea4a51768fde
- https://github.com/python/cpython/commit/eb63c0f94dfcbea7fda8eab6213818e134d6719
- https://github.com/python/cpython/commit/f50bf13566189c8d0ce5a814f33eff3d8995189
- https://github.com/python/cpython/commit/f5e2776ff0383a902c12acf2b703e7e951fc843
- https://github.com/python/cpython/issues/151981
- https://github.com/python/cpython/pull/151982
- https://mail.python.org/archives/list/[email protected]/thread/AXPSKK
FAQ
What is CVE-2026-11972?
CVE-2026-11972 is a documented vulnerability. 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.
How severe is CVE-2026-11972?
CVSS scoring is not yet available for CVE-2026-11972. Check NVD for updates.
Is there a patch for CVE-2026-11972?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.