CVE-2026-11643

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. 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 — 4 sources updated this week
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

Use after free in Proxy in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)

CVSS v3
8.1
EG Score
8.1(high)
EPSS
18.9%
KEV
Not listed

Published

June 8, 2026

Last Modified

June 9, 2026

Advisory Details (2)

Auto-updated Jun 9, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/518006379
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html

Vendor Advisories for CVE-2026-11643(2)

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 35× in last 7d / 151× 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 151 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-11643?
CVE-2026-11643 is a high vulnerability published on June 8, 2026. Use after free in Proxy in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)
When was CVE-2026-11643 disclosed?
CVE-2026-11643 was first published in the National Vulnerability Database on June 8, 2026, with the most recent update on June 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11643 actively exploited?
CVE-2026-11643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 18.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-11643?
CVE-2026-11643 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-11643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11643, 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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