CVE-2026-12438

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
8.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.3Exploit: NoneExposed: 0

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

Inappropriate implementation in WebView in Google Chrome on Android prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

CVSS v3
8.3
EG Score
8.3(medium)
EG Risk
42(Track)
EG Risk 42/100SSVC: 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
Severity83% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
11.0%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 18, 2026

Advisory Details (2)

Auto-updated Jun 18, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/516947912
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01750511403.html

Vendor Advisories for CVE-2026-12438(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 10× in last 7d / 119× 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 142 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-12438?
CVE-2026-12438 is a high vulnerability published on June 17, 2026. Inappropriate implementation in WebView in Google Chrome on Android prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
When was CVE-2026-12438 disclosed?
CVE-2026-12438 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on June 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12438 actively exploited?
CVE-2026-12438 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-12438?
CVE-2026-12438 has a CVSS v3.1 base score of 8.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-12438?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12438, 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-2026-12438

Explore →

Is Your Infrastructure Affected by CVE-2026-12438?

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

Start Free Scan →Browse All CVEs