CVE-2026-43735

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

The issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. A malicious website may exfiltrate data cross-origin.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

June 29, 2026

Last Modified

July 27, 2026

Advisory Details (3)

Auto-updated Jun 30, 2026
No patch confirmed yet.
generic

About the security content of Safari 26.5.2 - Apple Support

https://support.apple.com/en-us/127685
generic

About the security content of macOS Tahoe 26.5.2 - Apple Support

https://support.apple.com/en-us/127595
generic

About the security content of iOS 26.5.2 and iPadOS 26.5.2 - Apple Support

https://support.apple.com/en-us/127594

Vendor Advisories for CVE-2026-43735(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 31× in last 7d / 86× 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. 2026-08-02 00:01 UTCGHSA enrichment
  2. 2026-08-01 13:03 UTCEG score recompute
  3. 2026-08-01 13:03 UTCGHSA enrichment
  4. 2026-08-01 04:16 UTCEPSS rescore
  5. 2026-08-01 02:06 UTCGHSA enrichment
  6. 2026-07-31 14:12 UTCGHSA enrichment
  7. 2026-07-31 03:15 UTCEG score recompute
  8. 2026-07-31 03:15 UTCGHSA enrichment
  9. 2026-07-30 16:28 UTCEPSS rescore
  10. 2026-07-30 16:17 UTCEG score recompute
  11. 2026-07-30 16:17 UTCGHSA enrichment
  12. 2026-07-30 04:35 UTCEG score recompute
  13. 2026-07-30 04:35 UTCGHSA enrichment
  14. 2026-07-30 01:30 UTCEPSS rescore
  15. 2026-07-29 17:37 UTCGHSA enrichment
  16. 2026-07-29 06:40 UTCGHSA enrichment
  17. 2026-07-28 19:42 UTCEG score recompute
  18. 2026-07-28 19:42 UTCGHSA enrichment
  19. 2026-07-28 15:36 UTCEPSS rescore
  20. 2026-07-28 08:39 UTCGHSA enrichment
  21. 2026-07-27 21:40 UTCGHSA enrichment
  22. 2026-07-27 20:47 UTCEG score recompute
  23. 2026-07-27 20:47 UTCGHSA enrichment
  24. 2026-07-27 14:13 UTCEPSS rescore
  25. 2026-07-27 12:00 UTCGHSA enrichment
Show 67 more
  1. 2026-07-27 01:04 UTCEG score recompute
  2. 2026-07-27 01:03 UTCGHSA enrichment
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 14:00 UTCEG score recompute
  6. 2026-07-26 14:00 UTCGHSA enrichment
  7. 2026-07-25 14:18 UTCEPSS rescore
  8. 2026-07-24 14:17 UTCEPSS rescore
  9. 2026-07-23 14:18 UTCEPSS rescore
  10. 2026-07-23 03:14 UTCEG score recompute
  11. 2026-07-22 14:08 UTCEPSS rescore
  12. 2026-07-21 15:24 UTCEPSS rescore
  13. 2026-07-20 17:08 UTCEPSS rescore
  14. 2026-07-19 14:31 UTCEPSS rescore
  15. 2026-07-19 02:29 UTCEPSS rescore
  16. 2026-07-18 10:04 UTCEPSS rescore
  17. 2026-07-16 19:52 UTCGHSA enrichment
  18. 2026-07-16 17:03 UTCEPSS rescore
  19. 2026-07-16 08:45 UTCGHSA enrichment
  20. 2026-07-15 21:48 UTCGHSA enrichment
  21. 2026-07-15 16:57 UTCEPSS rescore
  22. 2026-07-15 10:42 UTCGHSA enrichment
  23. 2026-07-14 23:35 UTCGHSA enrichment
  24. 2026-07-14 12:33 UTCGHSA enrichment
  25. 2026-07-14 01:36 UTCGHSA enrichment
  26. 2026-07-13 22:30 UTCEPSS rescore
  27. 2026-07-13 14:39 UTCGHSA enrichment
  28. 2026-07-13 06:13 UTCEPSS rescore
  29. 2026-07-13 03:42 UTCGHSA enrichment
  30. 2026-07-12 16:45 UTCGHSA enrichment
  31. 2026-07-12 05:47 UTCGHSA enrichment
  32. 2026-07-12 05:46 UTCEPSS rescore
  33. 2026-07-11 18:50 UTCGHSA enrichment
  34. 2026-07-11 08:27 UTCEPSS rescore
  35. 2026-07-11 07:53 UTCGHSA enrichment
  36. 2026-07-10 20:56 UTCGHSA enrichment
  37. 2026-07-10 09:59 UTCGHSA enrichment
  38. 2026-07-09 23:03 UTCGHSA enrichment
  39. 2026-07-09 19:10 UTCEPSS rescore
  40. 2026-07-09 12:06 UTCGHSA enrichment
  41. 2026-07-09 01:08 UTCGHSA enrichment
  42. 2026-07-08 15:16 UTCEPSS rescore
  43. 2026-07-08 14:12 UTCGHSA enrichment
  44. 2026-07-08 03:13 UTCGHSA enrichment
  45. 2026-07-07 16:14 UTCGHSA enrichment
  46. 2026-07-07 13:46 UTCEPSS rescore
  47. 2026-07-07 05:17 UTCGHSA enrichment
  48. 2026-07-06 18:11 UTCGHSA enrichment
  49. 2026-07-06 16:27 UTCEPSS rescore
  50. 2026-07-06 07:14 UTCGHSA enrichment
  51. 2026-07-06 02:23 UTCEPSS rescore
  52. 2026-07-05 20:10 UTCGHSA enrichment
  53. 2026-07-05 09:13 UTCGHSA enrichment
  54. 2026-07-05 02:30 UTCEPSS rescore
  55. 2026-07-04 22:15 UTCGHSA enrichment
  56. 2026-07-04 11:18 UTCGHSA enrichment
  57. 2026-07-04 06:31 UTCEPSS rescore
  58. 2026-07-04 00:21 UTCGHSA enrichment
  59. 2026-07-03 13:24 UTCGHSA enrichment
  60. 2026-07-03 02:28 UTCEG score recompute▲ 8.10
  61. 2026-07-03 02:28 UTCGHSA enrichment
  62. 2026-07-01 15:07 UTCEPSS rescore
  63. 2026-06-30 23:22 UTCEPSS rescore
  64. 2026-06-30 16:32 UTCNVD updateCVSS v3 → 8.1 · severity → HIGH
  65. 2026-06-29 21:26 UTCNVD update
  66. 2026-06-29 20:18 UTCEG score recompute
  67. 2026-06-29 20:17 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-43735?
CVE-2026-43735 is a high vulnerability published on June 29, 2026. The issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. A malicious website may exfiltrate data cross-origin.
When was CVE-2026-43735 disclosed?
CVE-2026-43735 was first published in the National Vulnerability Database on June 29, 2026, with the most recent update on July 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43735 actively exploited?
CVE-2026-43735 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 78.2% of all scored CVEs.
What is the CVSS score of CVE-2026-43735?
CVE-2026-43735 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-43735?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43735, 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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