CVE-2026-43676

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-06-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — Patch released this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

June 29, 2026

Last Modified

August 17, 2026

Advisory Details (3)

Auto-updated Jun 29, 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-2026-43676(8)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatwebkit2gtk3-0:2.52.5-1.el9_22026-08-24redhat
redhatwebkitgtk4-0:2.52.5-1.el7_92026-08-24redhat
redhatwebkit2gtk3-0:2.52.5-1.el8_42026-08-20redhat
redhatwebkit2gtk3-0:2.52.5-1.el9_42026-08-13redhat
redhatwebkit2gtk3-0:2.52.5-1.el9_62026-08-13redhat
redhatwebkit2gtk3-0:2.52.5-1.el8_102026-07-20redhat
redhatwebkit2gtk3-0:2.52.5-1.el9_82026-07-20redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(8 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.32.3-1 ... 2.53.4-1 (246 versions)——
wpewebkit2.32.3-2 ... 2.52.5-1 (90 versions)——
Debian:12(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.40.1-1 ... 2.53.4-1 (161 versions)——
wpewebkit2.38.6-1 ... 2.52.5-1 (53 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.48.3-1 ... 2.52.4-1 (48 versions)2.52.5-1~deb13u1—
wpewebkit2.48.3-1 ... 2.52.5-1 (19 versions)——
Debian:14(2)
PackageVulnerable rangeFixed inDependents
webkit2gtk2.48.3-1 ... 2.52.5-1~deb13u1 (49 versions)2.52.5-1—
wpewebkit2.48.3-1 ... 2.52.4-1 (18 versions)2.52.5-1—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 113× 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.

Showing the most recent 100 of 163 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 12:42 UTCEG score recompute
  3. 2026-08-24 12:42 UTCVendor advisory
  4. 2026-08-24 12:42 UTCGHSA enrichment
  5. 2026-08-23 10:57 UTCEG score recompute
  6. 2026-08-23 10:57 UTCVendor advisory
  7. 2026-08-23 10:57 UTCGHSA enrichment
  8. 2026-08-23 00:19 UTCEPSS rescore
  9. 2026-08-22 09:12 UTCEG score recompute
  10. 2026-08-22 09:12 UTCVendor advisory
  11. 2026-08-22 09:12 UTCGHSA enrichment
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 07:27 UTCEG score recompute
  14. 2026-08-21 07:27 UTCVendor advisory
  15. 2026-08-21 07:27 UTCGHSA enrichment
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-20 05:42 UTCEG score recompute
  18. 2026-08-20 05:42 UTCVendor advisory
  19. 2026-08-20 05:42 UTCGHSA enrichment
  20. 2026-08-19 17:04 UTCEPSS rescore
  21. 2026-08-19 00:17 UTCEG score recompute
  22. 2026-08-19 00:17 UTCVendor advisory
  23. 2026-08-19 00:17 UTCGHSA enrichment
  24. 2026-08-18 13:48 UTCEPSS rescore
  25. 2026-08-17 22:25 UTCVendor advisory
Show 75 more
  1. 2026-08-17 22:25 UTCGHSA enrichment
  2. 2026-08-17 21:43 UTCEG score recompute
  3. 2026-08-17 21:43 UTCVendor advisory
  4. 2026-08-17 21:43 UTCGHSA enrichment
  5. 2026-08-17 13:47 UTCEPSS rescore
  6. 2026-08-17 11:58 UTCEG score recompute
  7. 2026-08-17 11:58 UTCVendor advisory
  8. 2026-08-17 11:58 UTCGHSA enrichment
  9. 2026-08-16 14:56 UTCEPSS rescore
  10. 2026-08-16 10:13 UTCEG score recompute
  11. 2026-08-16 10:13 UTCVendor advisory
  12. 2026-08-16 10:13 UTCGHSA enrichment
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 08:29 UTCEG score recompute
  15. 2026-08-15 08:29 UTCVendor advisory
  16. 2026-08-15 08:29 UTCGHSA enrichment
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-14 06:44 UTCEG score recompute
  19. 2026-08-14 06:44 UTCVendor advisory
  20. 2026-08-14 06:44 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-13 04:59 UTCEG score recompute
  23. 2026-08-13 04:59 UTCVendor advisory
  24. 2026-08-13 04:58 UTCGHSA enrichment
  25. 2026-08-12 13:51 UTCEPSS rescore
  26. 2026-08-12 03:13 UTCEG score recompute
  27. 2026-08-12 03:13 UTCVendor advisory
  28. 2026-08-12 03:13 UTCGHSA enrichment
  29. 2026-08-11 13:43 UTCEPSS rescore
  30. 2026-08-11 01:27 UTCEG score recompute
  31. 2026-08-11 01:27 UTCVendor advisory
  32. 2026-08-11 01:27 UTCGHSA enrichment
  33. 2026-08-11 00:00 UTCEPSS rescore
  34. 2026-08-09 23:43 UTCEG score recompute
  35. 2026-08-09 23:43 UTCVendor advisory
  36. 2026-08-09 23:43 UTCGHSA enrichment
  37. 2026-08-09 13:46 UTCEPSS rescore
  38. 2026-08-08 21:58 UTCEG score recompute
  39. 2026-08-08 21:58 UTCVendor advisory
  40. 2026-08-08 21:58 UTCGHSA enrichment
  41. 2026-08-08 16:37 UTCEPSS rescore
  42. 2026-08-07 20:12 UTCEG score recompute
  43. 2026-08-07 20:12 UTCVendor advisory
  44. 2026-08-07 20:12 UTCGHSA enrichment
  45. 2026-08-06 18:27 UTCEG score recompute
  46. 2026-08-06 18:27 UTCVendor advisory
  47. 2026-08-06 18:27 UTCGHSA enrichment
  48. 2026-08-06 13:46 UTCEPSS rescore
  49. 2026-08-05 19:17 UTCEPSS rescore
  50. 2026-08-05 16:42 UTCEG score recompute
  51. 2026-08-05 16:42 UTCVendor advisory
  52. 2026-08-05 16:42 UTCGHSA enrichment
  53. 2026-08-04 15:10 UTCEPSS rescore
  54. 2026-08-04 14:45 UTCEG score recompute
  55. 2026-08-04 14:45 UTCVendor advisory
  56. 2026-08-04 14:45 UTCGHSA enrichment
  57. 2026-08-04 10:38 UTCEPSS rescore
  58. 2026-08-03 10:36 UTCEPSS rescore
  59. 2026-08-03 09:35 UTCVendor advisory
  60. 2026-08-03 09:35 UTCGHSA enrichment
  61. 2026-08-02 07:49 UTCEG score recompute
  62. 2026-08-02 07:49 UTCVendor advisory
  63. 2026-08-02 07:49 UTCGHSA enrichment
  64. 2026-08-02 02:27 UTCEPSS rescore
  65. 2026-08-01 06:04 UTCEG score recompute
  66. 2026-08-01 06:04 UTCVendor advisory
  67. 2026-08-01 06:04 UTCGHSA enrichment
  68. 2026-08-01 04:16 UTCEPSS rescore
  69. 2026-07-31 03:49 UTCEG score recompute
  70. 2026-07-31 03:49 UTCVendor advisory
  71. 2026-07-31 03:49 UTCGHSA enrichment
  72. 2026-07-30 16:28 UTCEPSS rescore
  73. 2026-07-30 02:04 UTCEG score recompute
  74. 2026-07-30 02:04 UTCVendor advisory
  75. 2026-07-30 02:04 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-43676?
CVE-2026-43676 is a medium vulnerability published on June 29, 2026. An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari…
When was CVE-2026-43676 disclosed?
CVE-2026-43676 was first published in the National Vulnerability Database on June 29, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43676 actively exploited?
CVE-2026-43676 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 61.5% of all scored CVEs.
What is the CVSS score of CVE-2026-43676?
CVE-2026-43676 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-43676?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43676, 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-2026-43676

Explore →

Is Your Infrastructure Affected by CVE-2026-43676?

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

Start Free Scan →Browse All CVEs