CVE-2026-90486

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory published 2026-09-13. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.3
EG Score
6.3(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

September 12, 2026

Last Modified

September 15, 2026

Advisory Details (3)

Auto-updated Sep 12, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

GitHub - openstatusHQ/openstatus: 🫖 Status page with uptime monitoring & API monitoring as code 🫖 · GitHub

https://github.com/openstatusHQ/openstatus/
github_commit

commit 86f370c9c200 (openstatusHQ/openstatus)

Fix landed in openstatusHQ/openstatus commit 86f370c9c200 — awaiting tagged release

https://github.com/openstatusHQ/openstatus/commit/86f370c9c20074c3c3fdec53a359874b8e670fd4
github_pr

status page: rewrite

Fix merged in openstatusHQ/openstatus PR #2551 on 2026-08-16 — awaiting tagged release

https://github.com/openstatusHQ/openstatus/pull/2551

Vendor Advisories for CVE-2026-90486(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 18:08 UTCGHSA enrichment
  3. 2026-09-19 18:37 UTCEG score recompute
  4. 2026-09-19 18:37 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 19:06 UTCGHSA enrichment
  7. 2026-09-17 19:35 UTCEG score recompute
  8. 2026-09-17 19:35 UTCGHSA enrichment
  9. 2026-09-17 19:32 UTCEPSS rescore
  10. 2026-09-16 18:06 UTCEG score recompute
  11. 2026-09-16 18:05 UTCGHSA enrichment
  12. 2026-09-16 14:09 UTCEPSS rescore
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 18:35 UTCEG score recompute
  15. 2026-09-15 18:35 UTCGHSA enrichment
  16. 2026-09-15 17:24 UTCEG score recompute
  17. 2026-09-15 17:24 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-14 21:08 UTCGHSA enrichment
  20. 2026-09-13 22:49 UTCEG score recompute
  21. 2026-09-13 22:48 UTCGHSA enrichment
  22. 2026-09-12 23:18 UTCEG score recompute
  23. 2026-09-12 22:47 UTCEG score recompute
  24. 2026-09-12 22:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90486?
CVE-2026-90486 is a medium vulnerability published on September 12, 2026. 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.…
When was CVE-2026-90486 disclosed?
CVE-2026-90486 was first published in the National Vulnerability Database on September 12, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90486 actively exploited?
CVE-2026-90486 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 85.4% of all scored CVEs.
What is the CVSS score of CVE-2026-90486?
CVE-2026-90486 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-90486?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90486, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-90486

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