# CVE-2026-90486 — openstatusHQ openstatus

> As of 2026-09-12, CVE-2026-90486 is a MEDIUM-severity vulnerability in openstatusHQ openstatus, CVSS v3.1 6.3. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-90486 as of 2026-09-12; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-09-12

## What is CVE-2026-90486?

A vulnerability has been found in openstatusHQ openstatus up to f04c827112f30a11d571ebdad3892826034d6265. Affected by this vulnerability is an unknown functionality of the file apps/status-page/src/lib/proxy/resolve-custom-domain-rewrite.ts. The manipulation leads to server-side request forgery. The attack may be initiated remotely. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The identifier of the patch is 86f370c9c20074c3c3fdec53a359874b8e670fd4. It is suggested to install a patch to address this issue. This issue got fixed with a silent patch.

The record classifies CVE-2026-90486 under weakness class [CWE-918](https://intel.threadlinqs.com/cwe/CWE-918). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 23 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 6.3 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C`)
- **CVSS v4.0 base score:** 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:X`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 3.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-12

## Is CVE-2026-90486 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **openstatusHQ**: openstatus

## How to fix CVE-2026-90486

No vendor patch reference has been recorded for CVE-2026-90486 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-90486

No threat campaign in the Threadlinqs corpus currently references CVE-2026-90486, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, GitHub Security Advisories. Last verified by Threadlinqs on 2026-09-14.

**Vendor advisory and patch**

- [github.com — issue tracking](https://github.com/openstatusHQ/openstatus/pull/2551)
- [github.com — patch](https://github.com/openstatusHQ/openstatus/commit/86f370c9c20074c3c3fdec53a359874b8e670fd4)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/vuln/403074/cti)
- [vuldb.com — third party advisory](https://vuldb.com/cve/CVE-2026-90486)
- [vuldb.com — third party advisory (888087)](https://vuldb.com/submit/888087)

**Vulnerability database entry**

- [vuldb.com — vdb entry](https://vuldb.com/vuln/403074)

**Issue tracking and product pages**

- [github.com — product](https://github.com/openstatusHQ/openstatus/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-90486
Full detection coverage and IOCs for threats exploiting CVE-2026-90486 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp