{"id":"CVE-2022-31573","aliases":["EUVD-2022-6259","GHSA-687h-86vc-5x59","PYSEC-2026-309"],"status":"published","title":"ChainerRL Visualizer 0.1.1 vulnerable to Path Traversal via unsafe use of send_file function","description":"The chainer/chainerrl-visualizer repository through 0.1.1 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01404,"percentile":0.72784,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2022-07-11T01:01:06Z","modified":"2026-10-28T02:30:49Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"chainerrl-visualizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.1.1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"chainerrl-visualizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.1.1"}]}],"versions":["0.1.0","0.1.1"]},{"source":"osv","ecosystem":"PyPI","package":"chainerrl-visualizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.1.1"}]}],"versions":["0.1.0","0.1.1"]}],"products":[{"vendor":"chainer","product":"chainerrl-visualizer"}],"references":[{"url":"https://github.com/github/securitylab/issues/669#issuecomment-1117265726","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-31573","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/chainerrl-visualizer/PYSEC-2026-309.yaml","tags":["web"]},{"url":"https://pypi.org/project/chainerrl-visualizer","tags":["web","package"]},{"url":"https://github.com/advisories/GHSA-687h-86vc-5x59","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31573.json","tags":["advisory"]},{"url":"https://github.com/chainer/chainerrl-visualizer","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-31573","description":"The chainer/chainerrl-visualizer repository through 0.1.1 on GitHub allows absolute path traversal because the Flask send_file function is used 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