Veille CVE

‹ Retour à la liste

CVE-2026-56100

8.1 Élevée

Publiée le 28/08/2026 à 22:18 · Modifiée le 16/09/2026 à 15:42 · Analyse NVD reportée · Source : disclosure@vulncheck.com

Description

SpringBlade versions from 2.7.3 up to but not including 5.0.0 contain a privilege escalation vulnerability that allows authenticated attackers to create system administrator accounts by sending crafted POST requests to an unprotected internal Feign user-creation endpoint exposed via @RestController without authorization checks. Attackers can exploit the gateway's authentication filter, which only validates JWT parsing without verifying user roles or caller identity, and leverage a hardcoded JWT signing key embedded in publicly available JARs to forge tokens and escalate privileges from a low-privilege user to administrator, enabling cross-tenant data pollution and persistent backdoor access.

Traduire en français

Produits concernés

Scores CVSS

VersionScoreSourceVecteur
4.0 8.6 Élevée disclosure@vulncheck.com CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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
3.1 8.1 Élevée disclosure@vulncheck.com CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Faiblesses (CWE)

Références

Ailleurs