CVE-2026-34460

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Source
https://cve.org/CVERecord?id=CVE-2026-34460
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34460.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34460
Aliases
  • GHSA-pmpw-2xvh-5xj6
Published
2026-06-02T15:29:14.648Z
Modified
2026-07-08T08:12:50.162902339Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N CVSS Calculator
Summary
NamelessMC: OAuth callback `state` is not validated, allowing login CSRF / session swapping
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34460.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-302",
        "CWE-346",
        "CWE-352"
    ]
}
References

Affected packages

Git / github.com/namelessmc/nameless

Affected ranges

Type
GIT
Repo
https://github.com/namelessmc/nameless
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e0daffa8d777f5aab5625c984961e84dbdf0282f
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.2.5"
        }
    ]
}

Affected versions

v2.*
v2.0.0
v2.0.0-pr1
v2.0.0-pr10
v2.0.0-pr11
v2.0.0-pr13
v2.0.0-pr2
v2.0.0-pr3
v2.0.0-pr4
v2.0.0-pr5
v2.0.0-pr6
v2.0.0-pr7
v2.0.0-pr8
v2.0.1
v2.0.2
v2.2.1
v2.2.2
v2.2.3
v2.2.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34460.json"