CVE-2026-43789

HIGHNVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-14. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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

An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access user-sensitive data.

CVSS v3
7.5
EG Score
7.5HIGHhigh confidence
EG Risk
34
EG Risk 34/100CISA SSVC

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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 14, 2026

Last Modified

September 17, 2026

Advisory Details (3)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

About the security content of macOS Sequoia 15.8 - Apple Support

https://support.apple.com/en-us/149043
generic

About the security content of macOS Tahoe 26.7 - Apple Support

https://support.apple.com/en-us/149042
generic

About the security content of macOS Golden Gate 27 - Apple Support

https://support.apple.com/en-us/149035

Vendor Advisories for CVE-2026-43789(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 24× in last 7d / 72× 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. 2026-10-04 13:57 UTCGHSA enrichment
  2. 2026-10-04 00:59 UTCEG score recompute
  3. 2026-10-04 00:59 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 12:01 UTCGHSA enrichment
  6. 2026-10-02 22:52 UTCEG score recompute
  7. 2026-10-02 22:52 UTCGHSA enrichment
  8. 2026-10-02 09:54 UTCGHSA enrichment
  9. 2026-10-01 20:56 UTCEG score recompute
  10. 2026-10-01 20:56 UTCGHSA enrichment
  11. 2026-10-01 19:50 UTCEPSS rescore
  12. 2026-10-01 07:50 UTCGHSA enrichment
  13. 2026-09-30 18:52 UTCEG score recompute
  14. 2026-09-30 18:52 UTCGHSA enrichment
  15. 2026-09-30 15:03 UTCEPSS rescore
  16. 2026-09-30 05:55 UTCGHSA enrichment
  17. 2026-09-29 16:57 UTCEG score recompute
  18. 2026-09-29 16:56 UTCGHSA enrichment
  19. 2026-09-29 03:34 UTCEG score recompute
  20. 2026-09-29 03:34 UTCGHSA enrichment
  21. 2026-09-28 14:31 UTCEG score recompute
  22. 2026-09-28 14:31 UTCGHSA enrichment
  23. 2026-09-28 01:29 UTCEG score recompute
  24. 2026-09-28 01:29 UTCGHSA enrichment
  25. 2026-09-27 13:48 UTCEPSS rescore
Show 47 more
  1. 2026-09-27 12:30 UTCGHSA enrichment
  2. 2026-09-26 23:33 UTCEG score recompute
  3. 2026-09-26 23:32 UTCGHSA enrichment
  4. 2026-09-26 15:58 UTCEPSS rescore
  5. 2026-09-26 10:10 UTCEG score recompute
  6. 2026-09-26 10:10 UTCGHSA enrichment
  7. 2026-09-25 20:55 UTCGHSA enrichment
  8. 2026-09-25 07:43 UTCGHSA enrichment
  9. 2026-09-24 18:45 UTCEG score recompute
  10. 2026-09-24 18:45 UTCGHSA enrichment
  11. 2026-09-24 05:47 UTCEG score recompute
  12. 2026-09-24 05:47 UTCGHSA enrichment
  13. 2026-09-23 17:53 UTCEPSS rescore
  14. 2026-09-23 16:49 UTCGHSA enrichment
  15. 2026-09-23 03:52 UTCGHSA enrichment
  16. 2026-09-22 14:54 UTCEG score recompute
  17. 2026-09-22 14:54 UTCGHSA enrichment
  18. 2026-09-22 01:55 UTCEG score recompute
  19. 2026-09-22 01:55 UTCGHSA enrichment
  20. 2026-09-21 12:57 UTCGHSA enrichment
  21. 2026-09-20 23:59 UTCEG score recompute
  22. 2026-09-20 23:59 UTCGHSA enrichment
  23. 2026-09-20 20:15 UTCEPSS rescore
  24. 2026-09-20 11:01 UTCGHSA enrichment
  25. 2026-09-19 22:04 UTCEG score recompute
  26. 2026-09-19 22:04 UTCGHSA enrichment
  27. 2026-09-19 09:05 UTCGHSA enrichment
  28. 2026-09-18 20:08 UTCEG score recompute
  29. 2026-09-18 20:07 UTCGHSA enrichment
  30. 2026-09-18 19:28 UTCEPSS rescore
  31. 2026-09-18 07:08 UTCEG score recompute
  32. 2026-09-18 07:08 UTCGHSA enrichment
  33. 2026-09-17 19:31 UTCEPSS rescore
  34. 2026-09-17 18:10 UTCGHSA enrichment
  35. 2026-09-17 15:29 UTCEG score recompute
  36. 2026-09-17 15:29 UTCGHSA enrichment
  37. 2026-09-17 10:21 UTCEG score recompute
  38. 2026-09-17 10:21 UTCGHSA enrichment
  39. 2026-09-16 21:23 UTCEG score recompute▲ 7.50
  40. 2026-09-16 21:23 UTCGHSA enrichment
  41. 2026-09-16 21:22 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  42. 2026-09-16 14:08 UTCEPSS rescore
  43. 2026-09-16 05:15 UTCEPSS rescore
  44. 2026-09-15 14:57 UTCGHSA enrichment
  45. 2026-09-14 21:22 UTCNVD update
  46. 2026-09-14 20:58 UTCEG score recompute
  47. 2026-09-14 20:54 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-43789?
CVE-2026-43789 is a high vulnerability published on September 14, 2026. An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access user-sensitive data.
When was CVE-2026-43789 disclosed?
CVE-2026-43789 was first published on September 14, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43789 actively exploited?
CVE-2026-43789 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-43789?
CVE-2026-43789 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-43789?
No fix for CVE-2026-43789 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-43789 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-43789

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