CVE-2026-11278

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-06-05. 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 — 4 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

Inappropriate implementation in CustomTabs in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
3.9%
KEV
Not listed

Published

June 4, 2026

Last Modified

June 10, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/501859865
generic

Chrome Releases: Stable Channel Update for Desktop

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

Vendor Advisories for CVE-2026-11278(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 25× in last 7d / 116× 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 121 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-11278?
CVE-2026-11278 is a medium vulnerability published on June 4, 2026. Inappropriate implementation in CustomTabs in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
When was CVE-2026-11278 disclosed?
CVE-2026-11278 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on June 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11278 actively exploited?
CVE-2026-11278 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-11278?
CVE-2026-11278 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-11278?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11278, 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

Explore the affected products and dependency analysis for CVE-2026-11278

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