What is CVE-2026-90486?

CVE-2026-90486 is a medium-severity vulnerability in Openstatushq Openstatus, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-09-12.

How severe is CVE-2026-90486?

Medium severity. CVSS v3 base score is 6.3 out of 10.

SSRF in Openstatushq Openstatus

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-09-12 · last modified 2026-09-15.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (34.1th percentile), scored 2026-10-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Openstatushq Openstatus — versions f04c827112f30a11d571ebdad3892826034d6265

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

vuldb.com/vuln/403074 (vdb-entry)
vuldb.com/vuln/403074/cti (signature, permissions-required)
vuldb.com/cve/CVE-2026-90486 (third-party-advisory)
vuldb.com/submit/888087 (third-party-advisory)
github.com/openstatusHQ/openstatus/pull/2551 (issue-tracking, patch)
github.com/openstatusHQ/openstatus/commit/86f370c9c20074c3c3fdec53a359874b8e670… (patch)
github.com/openstatusHQ/openstatus/ (product)

Frequently asked questions

What is CVE-2026-90486?: CVE-2026-90486 is a medium-severity vulnerability in Openstatushq Openstatus, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-09-12.
How severe is CVE-2026-90486?: Medium severity. CVSS v3 base score is 6.3 out of 10.