CVE-2026-34460 (GCVE-0-2026-34460)
Vulnerability from cvelistv5 – Published: 2026-06-02 15:29 – Updated: 2026-06-02 17:35
VLAI
EPSS
VEX
Title
NamelessMC: OAuth callback `state` is not validated, allowing login CSRF / session swapping
Summary
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.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 17:35 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/NamelessMC/Nameless/security/a… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| NamelessMC | Nameless |
Affected:
< 2.2.5
|
guessed |
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