{"id":"CVE-2026-79312","title":"webpy web.py 0.76 is vulnerable to Session Fixation","summary":"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 af…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","cwe":["CWE-384"],"published":"2026-09-22","updated":"2026-09-22","sourceUpdated":"2026-09-22T20:00:03.713","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-79312","references":[{"url":"https://github.com/lichoin/TraceLoom/blob/main/CVEs/CVE-2026-79312.md","label":"cve@mitre.org"},{"url":"https://github.com/webpy/webpy","label":"cve@mitre.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79312.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-79312"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-79312"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79312"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-22T16:01:51.271958Z"},"ingestedAt":"2026-09-22T16:06:00.469Z","epss":0.00286,"epssPercentile":0.20982,"vendor":"Red Hat","slug":"CVE-2026-79312","body":"## Overview\n\nwebpy 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79312.json)","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}