Cloudreve before 4.17.0 SSRF via Admin.Read OAuth scope
Published Sep 27, 2026
5.3
MEDIUMCVSS 4.0
EPSS 0.19%
Description
Cloudreve 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 routes. An OAuth client that has been authorized by an administrator with only the Admin.Read scope can therefore submit attacker-controlled node definitions and cause the Cloudreve server to issue outbound requests to arbitrary URLs, enabling blind server-side request forgery, internal service probing, and delivery of signed Cloudreve slave-style requests to attacker-chosen endpoints.
Affected products
-
- Version 0StatusaffectedConstraints<4.17.0
- Version 4.17.0StatusunaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
github.com/cloudreve/Cloudreve/v4
Go
Introduced 0 Fixed 4.0.0-20260626022735-332a9d800205github.com/cloudreve/Cloudreve/v3
Go
Introduced 0 Fixed not fixedgithub.com/cloudreve/Cloudreve
Go
Introduced 0 Fixed not fixed
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/cloudreve/Cloudreve/v4 | 0 | 4.0.0-20260626022735-332a9d800205 |
| Go | github.com/cloudreve/Cloudreve/v3 | 0 | not fixed |
| Go | github.com/cloudreve/Cloudreve | 0 | not fixed |
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Sep 30, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Not enough EPSS history yet for a chart. At least two recorded scores are needed.
Percentile over time
Not enough EPSS history yet for a chart. At least two recorded scores are needed.
References (2)
- https://github.com/cloudreve/cloudreve/security/advisories/GHSA-v6w6-358x-2433 exploitvendor-advisory
- https://www.vulncheck.com/advisories/cloudreve-before-4.17.0-ssrf-via-admin-read-oauth-scope third-party-advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/cloudreve/cloudreve/security/advisories/GHSA-v6w6-358x-2433 | exploitvendor-advisory | |
| https://www.vulncheck.com/advisories/cloudreve-before-4.17.0-ssrf-via-admin-read-oauth-scope | third-party-advisory |
Change history (0)
No recorded changes yet.