PT-2026-45774 · Namelessmc · Nameless

Published 2026-06-02 · Updated 2026-06-02 · CVE-2026-34460

Mitre

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

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.

Fix

Origin Validation Error

CSRF

Weakness Enumeration

CWE-346

CWE-302

CWE-352

Related Identifiers

CVE-2026-34460

Affected Products

Nameless

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-34460 · Security Note
• https://github.com/NamelessMC/Nameless/security/advisories/GHSA-pmpw-2xvh-5xj6 · Note