CVE-2026-77637Low· 3.8▾ SunlitCloudreve is a self-hosted file management and sharing system. Prior to 4.18.0, tool.GET("wopi") and tool.POST("mail") in routers/router.go inherit ScopeAdminRead but omit the RequiredScopes(types.ScopeAdminWrite) middleware applied to n…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 20.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 24.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Cloudreve is a self-hosted file management and sharing system. Prior to 4.18.0, tool.GET("wopi") and tool.POST("mail") in routers/router.go inherit ScopeAdminRead but omit the RequiredScopes(types.ScopeAdminWrite) middleware applied to neighboring state-changing admin tool routes. An OAuth application or API key limited to Admin.Read can therefore probe configured WOPI service endpoints and send arbitrary test email through the server SMTP configuration, exceeding the token's intended read-only authorization boundary. This issue is fixed in version 4.18.0.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/cloudreve/Cloudreve/v4 < 4.0.0-20260715070110-bce08f88e9d8Patched in:
github.com/cloudreve/Cloudreve/v4 4.0.0-20260715070110-bce08f88e9d8Connected by shared product, vendor, weakness, or advisory.
CVE-2026-79913Medium· 6.5Cloudreve is a self-hosted file management and sharing system
CVE-2026-77633High· 7.1Cloudreve is a self-hosted file management and sharing system
CVE-2026-101056Medium· 5.3Cloudreve before 4.16.1 fails to revalidate share access when restoring cached navigator state from a context_hint UUID
CVE-2026-101048Medium· 5.4Cloudreve before 4.17.0 registers the administrative node test endpoints (POST /api/v4/admin/node/test and POST /api/v4/admin/node/test/downloader) without requiring the Admin.Write OAuth scope, unlike the node create/update/delete route…
CVE-2026-101051Low· 3.1Cloudreve before 4.16.1 fails to properly sanitize file paths returned by remote downloaders, allowing authenticated users to create files outside the selected destination directory
GO-2026-6289NoneCloudreve's remote download file paths can escape the selected destination directory in github.com/cloudreve/Cloudreve