High severityNVD Advisory· Published Jun 23, 2026· Updated Aug 6, 2026
CVE-2026-11972
CVE-2026-11972
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
18- osv-coords17 versionspkg:rpm/opensuse/python310&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python311&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python315&distro=openSUSE%20Tumbleweedpkg:bitnami/libpythonpkg:bitnami/python-minpkg:apk/chainguard/python-3.10pkg:apk/chainguard/python-3.11pkg:apk/chainguard/python-3.12pkg:apk/chainguard/python-3.13pkg:apk/chainguard/python-3.14pkg:apk/wolfi/python-3.10pkg:apk/wolfi/python-3.11pkg:apk/wolfi/python-3.12pkg:apk/wolfi/python-3.13pkg:apk/wolfi/python-3.14pkg:bitnami/pythonpkg:rpm/opensuse/python312&distro=openSUSE%20Tumbleweed
< 3.10.20-8.1+ 16 more
- (no CPE)range: < 3.10.20-8.1
- (no CPE)range: < 3.11.15-8.1
- (no CPE)range: < 3.15.0~b4-1.1
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: < 3.10.20-r10
- (no CPE)range: < 3.11.15-r8
- (no CPE)range: < 3.12.13-r10
- (no CPE)range: < 3.13.14-r2
- (no CPE)range: < 3.14.6-r3
- (no CPE)range: < 3.10.20-r10
- (no CPE)range: < 3.11.15-r8
- (no CPE)range: < 3.12.13-r10
- (no CPE)range: < 3.13.14-r2
- (no CPE)range: < 3.14.6-r3
- (no CPE)range: >= 0
- (no CPE)range: < 3.12.13-8.1
Patches
Vulnerability mechanics
References
10- github.com/python/cpython/commit/3f031d431f80668e14f3bc066bbf4369cd9281b9nvd
- github.com/python/cpython/commit/4ce6bf7c8aa7725828a38981c306f214c1f29365nvd
- github.com/python/cpython/commit/7f0dc59c9a70f8f3b4da33d7c4a2ba552a7acc21nvd
- github.com/python/cpython/commit/e86666c9dd256d52d0fbef6feb1ea4a51768fdecnvd
- github.com/python/cpython/commit/eb63c0f94dfcbea7fda8eab6213818e134d67192nvd
- github.com/python/cpython/commit/f50bf13566189c8d0ce5a814f33eff3d89951896nvd
- github.com/python/cpython/commit/f5e2776ff0383a902c12acf2b703e7e951fc8438nvd
- github.com/python/cpython/issues/151981nvd
- github.com/python/cpython/pull/151982nvd
- mail.python.org/archives/list/[email protected]/thread/AXPSKKTSRKXTTJULW3XSIC74WZNAAPPB/nvd
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