CVE-2026-54560

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Source
https://cve.org/CVERecord?id=CVE-2026-54560
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-54560.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-54560
Aliases
Downstream
Related
Published
2026-07-15T14:40:24Z
Modified
2026-10-16T02:57:55Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L CVSS Calculator
Summary
Cloudreve: OAuth access tokens bypass scope enforcement due to missing client_id claim
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54560.json"
}
References

Affected packages

Git / github.com/cloudreve/cloudreve

Affected ranges

Type
GIT
Repo
https://github.com/cloudreve/cloudreve
Events
Introduced
87d48ac4a7acbc68064c2b9cb23793ac97f4392d
Fixed
26b6b1044b0253c5ead7d5a90eaa10ff67ac2582
Fixed
ed20843dc3df20a25fcaf6b538647e11c4d68d87
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "4.12.0"
                },
                {
                    "fixed":  "4.16.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "ed20843dc3df20a25fcaf6b538647e11c4d68d87"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "4.16.1",
            "range":  [
                {
                    "fixed":  "26b6b1044b0253c5ead7d5a90eaa10ff67ac2582"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

4.*
4.12.0
4.12.1
4.13.0
4.14.0
4.14.1
4.15.0
4.16.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-54560.json"