CVE-2026-34460
NamelessMC is website software for Minecraft servers. In versions 2.2.4 and prior, the OAuth callback handling does not validate the state parameter server-side before exchanging the authorization code. This allows an attacker to capture a valid OAuth callback URL for their own account and cause a victim's browser to navigate to it, resulting in the victim's session being authenticated as the attacker-linked account (OAuth login CSRF / session swapping). This is patched in version 2.2.5.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.4
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- EPSS probability
- 0.11%
- CWE
- CWE-302, CWE-346, CWE-352
- Published
- 2026-06-02
- Last modified
- 2026-06-02
Affected products
- NamelessMC Nameless
Weakness type
Related vulnerabilities
- CVE-2026-77508 — Weblate: Unverified REST API email changes
- CVE-2026-13267 — Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access
- CVE-2026-5423 — Subscription Authentication Bypass via Unverified connectionParams.jwt
- CVE-2026-50528 — .NET Security Feature Bypass Vulnerability
- CVE-2026-47303 — ASP.NET Core Elevation of Privilege Vulnerability
- CVE-2026-48117 — DroneAware's Improper Account Activation in Registration and SSO Flows Leads to Account Takeover
- CVE-2026-48781 — Postiz has cross-tenant SUPERADMIN takeover via Skool-provider JWT forgery
- CVE-2025-43992 — Dell ECS versions 3.8.1.0 through 3.8.1.7 and Dell ObjectScale versions prior to 4.3.0.0, contains...