CVE-2021-32643

Katalog CVE

CVSS 5.8 · Medium EPSS 1,4%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada typelevel http4s. Skor CVSS 3.1 5.8 (Medium) menurut NVD.

Deskripsi (NVD)

Http4s is a Scala interface for HTTP services. `StaticFile.fromUrl` can leak the presence of a directory on a server when the `URL` scheme is not `file://`, and the URL points to a fetchable resource under its scheme and authority. The function returns `F[None]`, indicating no resource, if `url.getFile` is a directory, without first checking the scheme or authority of the URL. If a URL connection to the scheme and URL would return a stream, and the path in the URL exists as a directory on the server, the presence of the directory on the server could be inferred from the 404 response. The contents and other metadata about the directory are not exposed. This affects http4s versions: 0.21.7 through 0.21.23, 0.22.0-M1 through 0.22.0-M8, 0.23.0-M1, and 1.0.0-M1 through 1.0.0-M22. The [patch](https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9) is available in the following versions: v0.21.24, v0.22.0-M9, v0.23.0-M2, v1.0.0-M23. As a workaround users can avoid calling `StaticFile.fromUrl` with non-file URLs.

Rincian

Terbit di NVD

27 Mei 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.8 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

1,4% peluang dieksploitasi; lebih tinggi dari 71,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9 patch · advisory pihak ketiga
• https://github.com/http4s/http4s/security/advisories/GHSA-6h7w-fc84-x7p6 patch · advisory pihak ketiga
• https://mvnrepository.com/artifact/org.http4s/http4s-core advisory pihak ketiga