Low severityNVD Advisory· Published Aug 25, 2026· Updated Oct 2, 2026
CVE-2026-15310
CVE-2026-15310
Description
When decompressing crafted zip files using the bzip/LZMA/Zstandard
compressions, Python could use an attacker-controlled size to
pre-allocate memory, possibly resulting in memory exhaustion.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10- osv-coords9 versionspkg:bitnami/libpythonpkg:bitnami/pythonpkg:bitnami/python-minpkg:rpm/opensuse/python310&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python311&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python312&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python313&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python314&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python315&distro=openSUSE%20Tumbleweed
< 3.10.22+ 8 more
- (no CPE)range: < 3.10.22
- (no CPE)range: < 3.10.22
- (no CPE)range: < 3.10.22
- (no CPE)range: < 3.10.21-2.1
- (no CPE)range: < 3.11.16-2.1
- (no CPE)range: < 3.12.14-2.1
- (no CPE)range: < 3.13.15-2.1
- (no CPE)range: < 3.14.7-2.1
- (no CPE)range: < 3.15.0~rc2-1.1
Patches
Vulnerability mechanics
References
13- github.com/python/cpython/commit/09a2e7e6678b4f65449e7ad8f112c48f944591e2nvd
- github.com/python/cpython/commit/1b424c0178a01e155fd0267dc28a8fc1159b33a8nvd
- github.com/python/cpython/commit/31980e84b9a708424a0a1dfecde3fc991e313f89nvd
- github.com/python/cpython/commit/6257029de42ef89b67f3d20137de87d43e197530nvd
- github.com/python/cpython/commit/9d167992b59cf5e23c66b9ed742b13f5925f7d70nvd
- github.com/python/cpython/commit/c2bfbcdd1a11690507a10bc0998f95b8dc6b6facnvd
- github.com/python/cpython/commit/dcdd406ddbfc4cb29b24c3df17cbabe21d316ce1nvd
- github.com/python/cpython/commit/e2311cfb3dd518f008f312fe0631f4f7490d237anvd
- github.com/python/cpython/commit/f507e6946a3194e83e1d7b8ee6e14567175e46denvd
- github.com/python/cpython/commit/f897dbf2f36a5935700b7c2d94d4681d2136b7d4nvd
- github.com/python/cpython/issues/156002nvd
- github.com/python/cpython/pull/156003nvd
- mail.python.org/archives/list/[email protected]/thread/YUHXURX2WZGKGNA4ANYBQS2VZRYQ5JNK/nvd
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