# CVE-2026-90507: vvbbnn00 WARP-Clash-API Subscription subscription.py get_surge_subscription access control

> Remote attackers can bypass access controls in the subscription handler to read sensitive data due to improper authorization checks.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 13 Sep 2026
- **Updated:** 14 Sep 2026
- **Also known as:** GHSA-29fp-xrf7-2x4f

## What is CVE-2026-90507?

CVE-2026-90507 is a medium-severity missing authorization vulnerability in vvbbnn00 WARP-Clash-API, published on 13 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability was identified in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. Affected is the function get_surge_subscription of the file services/subscription.py of the component Subscription Handler. Such manipulation of the argument key leads to improper access controls. The attack may be launched remotely. The exploit is publicly available and might be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-284 (Improper Access Control), CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-90507?


## How do I fix CVE-2026-90507?

No fix has been published for CVE-2026-90507 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-90507 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90507 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-90507 and fix it if it is affected.

What it is: CVE-2026-90507 is a medium-severity missing authorization vulnerability in vvbbnn00 WARP-Clash-API, published on 13 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90507 exists.

Affected product: vvbbnn00 WARP-Clash-API. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-90507/ (Markdown: https://insights.sbomify.com/CVE-2026-90507/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-90507
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-90507
- OSV: https://osv.dev/vulnerability/CVE-2026-90507

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-90507/
Summaries are generated and may contain mistakes; the official description above is the record.