CVE-2026-10939

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

Use after free in WebRTC in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
36.5%
KEV
Not listed

Published

June 4, 2026

Last Modified

June 6, 2026

Advisory Details (2)

Auto-updated Jun 5, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/503502607
generic

Chrome Releases: Stable Channel Update for Desktop

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

Vendor Advisories for CVE-2026-10939(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 29× in last 7d / 163× 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 168 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-10939?
CVE-2026-10939 is a high vulnerability published on June 4, 2026. Use after free in WebRTC in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-10939 disclosed?
CVE-2026-10939 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on June 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10939 actively exploited?
CVE-2026-10939 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-10939?
CVE-2026-10939 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-10939?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10939, 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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