{"id":"UBUNTU-CVE-2026-79312","details":"webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.","modified":"2026-09-24T02:00:52.546276299Z","published":"2026-09-22T16:17:00Z","upstream":["CVE-2026-79312"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-79312"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-79312"},{"type":"REPORT","url":"https://github.com/lichoin/TraceLoom/blob/main/CVEs/CVE-2026-79312.md"},{"type":"REPORT","url":"https://github.com/webpy/webpy"}],"affected":[{"package":{"name":"webpy","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/webpy?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.37+20120626-1","1:0.37+20120626-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1:0.37+20120626-1ubuntu0.1~esm1","binary_name":"python-webpy"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79312.json"}},{"package":{"name":"webpy","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/webpy?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.38-1","1:0.38+20170615-1","1:0.38+20170615-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"python-webpy","binary_version":"1:0.38+20170615-1ubuntu0.1~esm1"},{"binary_name":"python3-webpy","binary_version":"1:0.38+20170615-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79312.json"}},{"package":{"name":"webpy","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/webpy?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.39+20181101-1","1:0.40-2","1:0.40-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-webpy","binary_version":"1:0.40-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79312.json"}},{"package":{"name":"webpy","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/webpy?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.61-1","1:0.61-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-webpy","binary_version":"1:0.61-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79312.json"}},{"package":{"name":"webpy","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/webpy?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.62-4","1:0.62-4ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-webpy","binary_version":"1:0.62-4ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79312.json"}},{"package":{"name":"webpy","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/webpy?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.62-6"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-webpy","binary_version":"1:0.62-6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-79312.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}