CVE-2022-31573 json
ChainerRL Visualizer 0.1.1 vulnerable to Path Traversal via unsafe use of send_file function
published 2022-07-11 4 y ago modified 2026-10-27 12 d ago also GHSA-687h-86vc-5x59 , PYSEC-2026-309 , EUVD-2022-6259
- cvss
- 9.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
The chainer/chainerrl-visualizer repository through 0.1.1 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely.
Exploit prediction
1.40% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/github/securitylab/issues/669#issuecomment-1117265726 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:N/A:P |
| GitHub | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L |
| OSV | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | chainerrl-visualizer | <=0.1.1 |
no fix listed |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/github/securitylab/issues/669#issuecomment-1117265726
web, exploit, issue-tracking, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-31573
advisory
-
github.com
/chainer/chainerrl-visualizer
package
-
github.com
/pypa/advisory-database/tree/main/vulns/chainerrl-visualizer/PYSEC-2026-309.yaml
web
-
pypi.org
/project/chainerrl-visualizer
web, package
-
github.com
/advisories/GHSA-687h-86vc-5x59
advisory
Sources
- CVE List CVE-2022-31573
- GitHub Advisory GHSA-687h-86vc-5x59
- NVD CVE-2022-31573
- OSV PYSEC-2026-309
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.