CVE-2026-34460

{"id": "CVE-2026-34460", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.8}]}, "published": "2026-06-02T16:16:36.933", "references": [{"url": "https://github.com/NamelessMC/Nameless/security/advisories/GHSA-pmpw-2xvh-5xj6", "source": "security-advisories@github.com"}, {"url": "https://github.com/NamelessMC/Nameless/security/advisories/GHSA-pmpw-2xvh-5xj6", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-302"}, {"lang": "en", "value": "CWE-346"}, {"lang": "en", "value": "CWE-352"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-06-02T20:16:34.753", "sourceIdentifier": "security-advisories@github.com"}