CVE-2026-45807

Katalog CVE

CVSS 7.7 · High EPSS 0,57%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada kestra. Skor CVSS 3.1 7.7 (High) menurut github.com.

Deskripsi (NVD)

Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.43 and 1.3.19, several Kestra API endpoints accept a kestra:// URI from the client and pass it through StorageInterface.parentTraversalGuard before reading the underlying file from the local storage backend. The guard only inspects the literal URI.toString(), so a URL-encoded .. written as %2E%2E slips through. The downstream code then calls URI.getPath(), which decodes %2E%2E back to .., and the resulting path is handed to Paths.get(...) without normalization. The OS resolves the .. segments at open(2) time, so an authenticated user with a single execution can read any file the Kestra process has access to on the host filesystem (/etc/passwd, mounted secrets, other tenants' execution outputs, etc.). This vulnerability is fixed in 1.0.43 and 1.3.19.

Rincian

Terbit di NVD

26 Juni 2026

Terakhir diubah

1 Juli 2026

Status NVD

Analyzed

CVSS 3.1

7.7 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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')

EPSS (30 hari)

0,57% peluang dieksploitasi; lebih tinggi dari 45,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/kestra-io/kestra/security/advisories/GHSA-3529-p4wf-xp79 exploit · mitigasi · advisory vendor