{"cve":"CVE-2015-5963","nvd":{"published":"2015-08-24T14:59:08.773","modified":"2026-06-17T00:30:11.693","status":"Modified","description":"contrib.sessions.middleware.SessionMiddleware in Django 1.8.x before 1.8.4, 1.7.x before 1.7.10, 1.4.x before 1.4.22, and possibly other versions allows remote attackers to cause a denial of service (session store consumption or session record removal) via a large number of requests to contrib.auth.views.logout, which triggers the creation of an empty session record.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172084.html","http://lists.opensuse.org/opensuse-updates/2015-09/msg00026.html","http://lists.opensuse.org/opensuse-updates/2015-09/msg00035.html","http://rhn.redhat.com/errata/RHSA-2015-1766.html","http://rhn.redhat.com/errata/RHSA-2015-1767.html"],"products":["canonical:ubuntu_linux","djangoproject:django","oracle:solaris"],"source":"nvd","synced_at":"2026-10-19T20:37:45.466985407+00:00"},"epss":{"cve":"CVE-2015-5963","score":0.05206,"percentile":0.92488,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pgxh-wfw4-jx2v","url":"https://osv.dev/vulnerability/GHSA-pgxh-wfw4-jx2v","summary":"Django denial of service via empty session record creation","modified":"2025-02-18T05:41:37.096901Z","packages":[{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=1.8 <1.8.4"],"fixed":["1.8.4"]},{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=1.7 <1.7.10"],"fixed":["1.7.10"]},{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=1.4 <1.4.22"],"fixed":["1.4.22"]}]},{"id":"PYSEC-2015-22","url":"https://osv.dev/vulnerability/PYSEC-2015-22","summary":"","modified":"2026-06-10T17:00:58.840111987Z","packages":[{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=1.8 <1.8.4",">=1.7 <1.7.10",">=1.4 <1.4.22"],"fixed":["1.8.4","1.7.10","1.4.22"]}]}],"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."]}