# Cloudreve Admin.Read OAuth tokens can trigger server-side node test requests

Advisory record · `GHSA-v6w6-358x-2433`

- **Identifiers:** `GHSA-v6w6-358x-2433` · `CVE-2026-101048` · `GO-2026-6106`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-863](https://cwe.mitre.org/data/definitions/863.html) · [CWE-918](https://cwe.mitre.org/data/definitions/918.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [Server-side request forgery (SSRF)](https://agentprime.io/advisories/tag/ssrf.md)
- **Published:** 24 Jul 2026
- **Updated:** 28 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 Jul 2026, 21:50 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/cloudreve/Cloudreve/v4` (Go): affected `<4.0.0-20260626022735-332a9d800205`; fixed in `4.0.0-20260626022735-332a9d800205`
- `github.com/cloudreve/Cloudreve/v3` (Go): affected `<=3.0.0-20250225100611-da4e44b77af4`; no fixed version yet

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Cloudreve v4 versions before 4.0.0-20260626022735-332a9d800205 and Cloudreve v3 up to and including 3.0.0-20250225100611-da4e44b77af4 are affected. An attacker holding an admin-authorized OAuth token with only the Admin.Read scope can call the node test endpoints, which make the server send requests to attacker-supplied URLs, enabling blind SSRF and internal service probing. Upgrade Cloudreve v4 to 4.0.0-20260626022735-332a9d800205 or later. No fix is listed for v3.

Written 1 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.3 Medium, CVSS 4.0: `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`, from CNA (VulnCheck)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0024, the 14th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:12 UTC: First seen by agentprime
- 31 Oct 2026, 14:12 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-v6w6-358x-2433)

## Sources

- [GitHub Advisory Database: GHSA-v6w6-358x-2433](https://github.com/advisories/GHSA-v6w6-358x-2433)
- [OSV: GHSA-v6w6-358x-2433](https://osv.dev/vulnerability/GHSA-v6w6-358x-2433)
- <https://github.com/cloudreve/cloudreve/security/advisories/GHSA-v6w6-358x-2433>
- <https://github.com/cloudreve/cloudreve/commit/332a9d800205082a2469e555fd66a63f18d9d5dc>
- <https://github.com/cloudreve/cloudreve>
- <https://github.com/cloudreve/cloudreve/releases/tag/4.17.0>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-v6w6-358x-2433>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-v6w6-358x-2433/>. Everything for agents: <https://agentprime.io/llms.txt>.