CVE-2026-90620

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-09-14. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: Elevated riskExposed: 0

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

A vulnerability was determined in 0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04. The impacted element is an unknown function of the file hexstrike_server.py of the component API Command Endpoint. This manipulation causes missing authentication. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
64(Attend)
EG Risk 64/100SSVC: Attend

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
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 14, 2026

Advisory Details (1)

Auto-updated Sep 14, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

HexStrike AI — Unauthenticated Remote Code Execution via `/api/command` Endpoint · Issue #223 · 0x4m4/hexstrike-ai · GitHub

https://github.com/0x4m4/hexstrike-ai/issues/223

Vendor Advisories for CVE-2026-90620(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 35× in last 7d / 39× 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 21:41 UTCEG score recompute
  2. 2026-09-20 21:40 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 10:35 UTCGHSA enrichment
  5. 2026-09-19 23:27 UTCEG score recompute
  6. 2026-09-19 23:27 UTCGHSA enrichment
  7. 2026-09-19 12:23 UTCGHSA enrichment
  8. 2026-09-19 01:19 UTCEG score recompute
  9. 2026-09-19 01:19 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 14:16 UTCGHSA enrichment
  12. 2026-09-18 03:08 UTCEG score recompute
  13. 2026-09-18 03:08 UTCGHSA enrichment
  14. 2026-09-17 19:32 UTCEPSS rescore
  15. 2026-09-17 16:04 UTCGHSA enrichment
  16. 2026-09-17 05:01 UTCGHSA enrichment
  17. 2026-09-16 17:57 UTCEG score recompute
  18. 2026-09-16 17:57 UTCGHSA enrichment
  19. 2026-09-16 14:09 UTCEPSS rescore
  20. 2026-09-16 06:17 UTCEG score recompute
  21. 2026-09-16 06:17 UTCGHSA enrichment
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 19:14 UTCGHSA enrichment
  24. 2026-09-15 08:09 UTCEG score recompute
  25. 2026-09-15 08:09 UTCGHSA enrichment
Show 14 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-14 21:05 UTCGHSA enrichment
  3. 2026-09-14 16:24 UTCEG score recompute
  4. 2026-09-14 16:24 UTCGHSA enrichment
  5. 2026-09-14 16:23 UTCNVD updateCVSS v4 → 5.5
  6. 2026-09-14 15:20 UTCEG score recompute
  7. 2026-09-14 15:20 UTCGHSA enrichment
  8. 2026-09-14 15:19 UTCMITRE cvelistV5CVSS v4 → 6.9
  9. 2026-09-14 14:23 UTCEG score recompute
  10. 2026-09-14 14:23 UTCGHSA enrichment
  11. 2026-09-14 03:20 UTCEG score recompute
  12. 2026-09-14 03:20 UTCNVD updateCVSS v4 → 5.5
  13. 2026-09-14 03:15 UTCEG score recompute
  14. 2026-09-14 03:14 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90620?
CVE-2026-90620 is a high vulnerability published on September 14, 2026. A vulnerability was determined in 0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04. The impacted element is an unknown function of the file hexstrike_server.py of the component API Command Endpoint. This manipulation causes missing authentication. The attack can be initiated…
When was CVE-2026-90620 disclosed?
CVE-2026-90620 was first published in the National Vulnerability Database on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90620 actively exploited?
CVE-2026-90620 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 66.9% of all scored CVEs.
What is the CVSS score of CVE-2026-90620?
CVE-2026-90620 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-90620?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90620, 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

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