CVE-2026-54560

{"id": "CVE-2026-54560", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54560", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-15T15:16:30.603425Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.5, "exploitabilityScore": 2.1}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "cloudreve", "product": "cloudreve", "versions": [{"status": "affected", "version": ">= 4.12.0, < 4.16.1"}]}]}], "published": "2026-07-15T15:16:44.840", "references": [{"url": "https://github.com/cloudreve/cloudreve/commit/ed20843dc3df20a25fcaf6b538647e11c4d68d87", "source": "security-advisories@github.com"}, {"url": "https://github.com/cloudreve/cloudreve/releases/tag/4.16.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/cloudreve/cloudreve/security/advisories/GHSA-vgj4-345g-jcf8", "source": "security-advisories@github.com"}, {"url": "https://github.com/cloudreve/cloudreve/security/advisories/GHSA-vgj4-345g-jcf8", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "Cloudreve is a self-hosted file management and sharing system. From 4.12.0 until 4.16.1, Cloudreve's OAuth access tokens are issued without the OAuth client_id claim, so the JWT verifier does not load token scopes into request context and RequiredScopes treats the request like non-scoped session authentication, allowing a low-scope OAuth access token to call APIs requiring higher scopes such as file, share, workflow, user setting, WebDAV account, and potentially admin scopes. This issue is fixed in version 4.16.1."}], "lastModified": "2026-07-15T18:15:13.373", "sourceIdentifier": "security-advisories@github.com"}