{"cve":"CVE-2026-15310","nvd":{"published":"2026-08-25T15:16:30.027","modified":"2026-10-02T01:16:43.337","status":"Awaiting Analysis","description":"When decompressing crafted zip files using the bzip/LZMA/Zstandard \n\ncompressions, Python could use an attacker-controlled size to \n\npre-allocate memory, possibly resulting in memory exhaustion.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":2.1},"cvss_v3":null,"cwes":["CWE-400"],"references":["https://github.com/python/cpython/commit/09a2e7e6678b4f65449e7ad8f112c48f944591e2","https://github.com/python/cpython/commit/1b424c0178a01e155fd0267dc28a8fc1159b33a8","https://github.com/python/cpython/commit/31980e84b9a708424a0a1dfecde3fc991e313f89","https://github.com/python/cpython/commit/6257029de42ef89b67f3d20137de87d43e197530","https://github.com/python/cpython/commit/9d167992b59cf5e23c66b9ed742b13f5925f7d70"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-15310","score":0.00526,"percentile":0.44278,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}