CVE-2026-73843

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 78% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: None knownExposed: 0

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

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.2 and 1.1.2, internal/cluster-gateway/server.go served caller-facing management APIs on the externally reachable agent listener without authentication, allowing network-reachable attackers to invoke /api/proxy/ and /api/exec/ operations, proxy the data-plane Kubernetes API, and execute commands in workload pods in multi-cluster deployments. This issue is fixed in versions 1.0.2 and 1.1.2.

CVSS v3
9.6
EG Score
9.6(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity96% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 8, 2026

Advisory Details (7)

Auto-updated Sep 14, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available

Unauthenticated access to data-plane operations via OpenChoreo cluster-gateway management APIs · Advisory · openchoreo/openchoreo · GitHub

https://github.com/openchoreo/openchoreo/security/advisories/GHSA-qh9r-j7rp-4x2m
github_release Patch Available

v1.1.2

Patch available: openchoreo/openchoreo v1.1.2

https://github.com/openchoreo/openchoreo/releases/tag/v1.1.2
github_release Patch Available

v1.0.2

Patch available: openchoreo/openchoreo v1.0.2

https://github.com/openchoreo/openchoreo/releases/tag/v1.0.2
github_pr

fix: move cluster gateway internal routes to a new port

Fix merged in openchoreo/openchoreo PR #4122 on 2026-07-09 — awaiting tagged release

https://github.com/openchoreo/openchoreo/pull/4122
github_commit

commit b42eeb0f5dce (openchoreo/openchoreo)

Fix landed in openchoreo/openchoreo commit b42eeb0f5dce — awaiting tagged release

https://github.com/openchoreo/openchoreo/commit/b42eeb0f5dce95195a9781d7c5a1fe9e38f5da8f
github_commit

commit 0aa0ffe1623b (openchoreo/openchoreo)

Fix landed in openchoreo/openchoreo commit 0aa0ffe1623b — awaiting tagged release

https://github.com/openchoreo/openchoreo/commit/0aa0ffe1623bd8eb4235cb2a5854336695953c3a
github_commit

commit 047d80ddc63b (openchoreo/openchoreo)

Fix landed in openchoreo/openchoreo commit 047d80ddc63b — awaiting tagged release

https://github.com/openchoreo/openchoreo/commit/047d80ddc63b4b4b9dd67044d5cffcdbd77685ce

Vendor Advisories for CVE-2026-73843(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/openchoreo/openchoreo—1.1.2—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 53× 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. 2026-09-19 19:40 UTCEG score recompute
  2. 2026-09-18 22:46 UTCEG score recompute
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-17 22:16 UTCEG score recompute
  5. 2026-09-16 23:50 UTCEG score recompute
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-16 10:27 UTCEG score recompute
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-15 06:00 UTCEG score recompute
  10. 2026-09-15 03:12 UTCEPSS rescore
  11. 2026-09-13 17:07 UTCEG score recompute
  12. 2026-09-12 17:25 UTCEG score recompute
  13. 2026-09-12 15:02 UTCEPSS rescore
  14. 2026-09-11 17:41 UTCEG score recompute
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 09:44 UTCEG score recompute
  17. 2026-09-10 09:44 UTCEG score recompute
  18. 2026-09-10 09:35 UTCEPSS rescore
  19. 2026-09-09 04:51 UTCEG score recompute
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-07 16:27 UTCEG score recompute
  22. 2026-09-06 16:19 UTCEG score recompute
  23. 2026-09-06 13:48 UTCEPSS rescore
  24. 2026-09-05 16:37 UTCEG score recompute
  25. 2026-09-04 14:13 UTCEG score recompute
Show 47 more
  1. 2026-09-04 06:12 UTCEG score recompute
  2. 2026-09-04 05:07 UTCEPSS rescore
  3. 2026-09-02 22:59 UTCEG score recompute
  4. 2026-09-02 14:12 UTCEPSS rescore
  5. 2026-09-01 15:13 UTCEG score recompute
  6. 2026-09-01 13:54 UTCEPSS rescore
  7. 2026-09-01 06:10 UTCEG score recompute
  8. 2026-09-01 04:40 UTCEPSS rescore
  9. 2026-09-01 04:40 UTCEPSS rescore
  10. 2026-08-30 20:03 UTCEG score recompute
  11. 2026-08-30 19:18 UTCEPSS rescore
  12. 2026-08-30 19:17 UTCEPSS rescore
  13. 2026-08-30 04:15 UTCEG score recompute
  14. 2026-08-30 01:22 UTCEPSS rescore
  15. 2026-08-29 06:58 UTCEG score recompute
  16. 2026-08-28 21:42 UTCEPSS rescore
  17. 2026-08-27 15:10 UTCEG score recompute
  18. 2026-08-27 14:25 UTCEPSS rescore
  19. 2026-08-26 18:43 UTCEG score recompute
  20. 2026-08-26 14:47 UTCEPSS rescore
  21. 2026-08-25 17:28 UTCEG score recompute
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-24 17:18 UTCEG score recompute
  24. 2026-08-24 13:21 UTCEG score recompute
  25. 2026-08-23 01:46 UTCEG score recompute
  26. 2026-08-23 00:19 UTCEPSS rescore
  27. 2026-08-22 02:04 UTCEG score recompute
  28. 2026-08-21 23:49 UTCEPSS rescore
  29. 2026-08-21 02:20 UTCEG score recompute
  30. 2026-08-20 22:56 UTCEPSS rescore
  31. 2026-08-19 18:41 UTCEG score recompute
  32. 2026-08-19 17:04 UTCEPSS rescore
  33. 2026-08-18 14:59 UTCEG score recompute
  34. 2026-08-18 13:49 UTCEPSS rescore
  35. 2026-08-18 13:49 UTCEPSS rescore
  36. 2026-08-17 14:04 UTCEG score recompute
  37. 2026-08-17 13:47 UTCEPSS rescore
  38. 2026-08-16 18:19 UTCEG score recompute
  39. 2026-08-16 14:56 UTCEPSS rescore
  40. 2026-08-16 14:56 UTCEPSS rescore
  41. 2026-08-16 02:31 UTCEG score recompute
  42. 2026-08-16 02:15 UTCEPSS rescore
  43. 2026-08-15 02:28 UTCEG score recompute
  44. 2026-08-15 01:31 UTCEPSS rescore
  45. 2026-08-13 22:25 UTCEG score recompute
  46. 2026-08-13 22:09 UTCEG score recompute
  47. 2026-08-13 22:09 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73843?
CVE-2026-73843 is a critical vulnerability published on August 13, 2026. OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.2 and 1.1.2, internal/cluster-gateway/server.go served caller-facing management APIs on the externally reachable agent listener without authentication, allowing network-reachable attackers to invoke /api/proxy/…
When was CVE-2026-73843 disclosed?
CVE-2026-73843 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73843 actively exploited?
CVE-2026-73843 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 78.1% of all scored CVEs.
What is the CVSS score of CVE-2026-73843?
CVE-2026-73843 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-73843?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73843, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-73843

Explore →

Is Your Infrastructure Affected by CVE-2026-73843?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs