CVE-2026-54560: Cloudreve: OAuth access tokens bypass scope enforcement due to missing client_id claim
Affected: cloudreve · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 48% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- cloudreve · cloudreve>= 4.12.0, < 4.16.1
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-54560 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.