CVE-2026-56739

Katalog CVE

CVSS 8.5 · High EPSS 0,30%

Kerentanan Server-Side Request Forgery (SSRF). Skor CVSS 4.0 8.5 (High) menurut github.com.

Deskripsi (NVD)

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.43.0, Logto fetches administrator-controlled outbound destinations without validating the address used for the connection. Webhook delivery in packages/core/src/libraries/hook/utils.ts can reach special-use and cloud metadata addresses. Custom OAuth2 connectors can use an attacker-selected userInfoEndpoint and forward the OAuth access token in the Authorization header, while OIDC connectors can fetch an attacker-selected jwksUri. The affected operations require tenant administrative configuration access, but they cross the server's network boundary and can expose internal data or upstream provider credentials. This issue is fixed in version 1.43.0.

Rincian

Terbit di NVD

24 September 2026

Terakhir diubah

28 September 2026

Status NVD

Deferred

CVSS 4.0

8.5 (High), sumber github.com
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,30% peluang dieksploitasi; lebih tinggi dari 20,6% 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/logto-io/logto/commit/16f4b2e732d5114ac98646c9370ec6ab61d6ed26
• https://github.com/logto-io/logto/pull/9501
• https://github.com/logto-io/logto/releases/tag/v1.43.0
• https://github.com/logto-io/logto/security/advisories/GHSA-3556-624q-c5w3