ChainerRL Visualizer 0.1.1 vulnerable to Path Traversal via unsafe use of send_file function

CRITICAL 9.3CVE-2022-31573 · GHSA-687h-86vc-5x59 · PYSEC-2026-309 · Published 11/07/2022 · updated 17/06/2026

In short

CVE-2022-31573 is a CRITICAL (CVSS 9.3) vulnerability affecting chainerrl-visualizer, chainerrl-visualizer (chainer).
Chance of exploitation in the next 30 days (EPSS): 1.4%, higher than 72.7% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
chainerrl-visualizer PyPI	`≤ 0.1.1`	No fix yet
chainerrl-visualizer chainer	`≤ 0.1.1`	No fix yet

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.

NVD 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.

References

nvd.nist.gov/vuln/detail/CVE-2022-31573 · ADVISORY
github/securitylab · WEB
chainer/chainerrl-visualizer · PACKAGE
pypa/advisory-database · WEB
pypi.org/project/chainerrl-visualizer · WEB
GitHub Advisory GHSA-687h-86vc-5x59 · ADVISORY

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