CVE-2026-54353

Katalog CVE

CVSS 7.1 · High EPSS 0,21%

Kerentanan Time-of-check Time-of-use (TOCTOU) Race Condition pada budibase. Skor CVSS 3.1 7.1 (High) menurut NVD.

Deskripsi (NVD)

Budibase is an open-source low-code platform. Prior to 3.39.9, authenticated users with automation permissions can bypass Budibase's SSRF blacklist through DNS rebinding. The outbound fetch flow validates a hostname against the blacklist before the request is sent, but the actual socket connection later performs a separate DNS lookup through node-fetch. Since the validated IPs are never pinned to the connection, an attacker-controlled hostname can return a public IP during validation and a private/internal IP during the real connection. This results in a non-blind SSRF primitive against internal services reachable from the Budibase host, including loopback, RFC1918 ranges, and cloud metadata endpoints. This vulnerability is fixed in 3.39.9.

Rincian

Terbit di NVD

26 Juni 2026

Terakhir diubah

30 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,21% peluang dieksploitasi; lebih tinggi dari 10,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/Budibase/budibase/security/advisories/GHSA-gfq7-5x4g-3xhf exploit · advisory vendor