sanic vulnerable to Path Traversal when using `app.static` if using encoded `%2F` URLs

高 7.5CVE-2022-35920 · GHSA-8cw9-5hmv-77w6 · PYSEC-2026-918 · 01/08/2022 公開 · 17/06/2026 更新

要点

CVE-2022-35920 は sanic, sanic (sanic project) に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.2%（全脆弱性の 68.3% より高い）。
対処：21.12.2, 22.6.1, 20.12.7 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
sanic PyPI	`≥ 21.0.0, < 21.12.2≥ 22.0.0, < 22.6.1< 20.12.7`	`21.12.222.6.120.12.7`
sanic sanic_project	`≥ 21.0.0, < 21.12.2≥ 22.0.0, < 22.6.1< 20.12.7`	`21.12.222.6.120.12.7`

概要

Impact

Access to lateral directories when using app.static if using encoded %2F URLs. Parent directory traversal is not impacted.

Patches

v20.12.7 (LTS)
v21.12.2 (LTS)
v22.6.1

References

https://github.com/sanic-org/sanic/issues/2478 https://github.com/sanic-org/sanic/pull/2495

For more information

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NVD の説明

Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using `app.static` if using encoded `%2F` URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue.