CVE-2026-49846

Katalog CVE

CVSS 7.5 · High EPSS 0,50%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

libks provides foundational support for signalwire C products. Prior to version 2.0.11, `clean_uri()` in libks's HTTP request parser fails to reject URIs whose path has more segments than its internal canonicalization buffer can hold. The canonicalization step silently passes such URIs through with embedded ".." sequences intact, enabling path traversal in any consumer that later joins the URI with a filesystem path. Version 2.0.11 patches the issue.

Rincian

Terbit di NVD

11 September 2026

Terakhir diubah

30 September 2026

Status NVD

Deferred

CVSS 3.1

7.5 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-697: Incorrect Comparison

EPSS (30 hari)

0,50% peluang dieksploitasi; lebih tinggi dari 41,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/signalwire/libks/security/advisories/GHSA-684h-wjm9-2p6j