CVE-2026-12439

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. 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 Digital Credentials in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)

CVSS v3
8.8
EG Score
8.8(high)
EPSS
24.2%
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/519728275
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-2026-12439(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 49× in last 7d / 139× 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 139 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-12439?
CVE-2026-12439 is a high vulnerability published on June 17, 2026. Use after free in Digital Credentials in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)
When was CVE-2026-12439 disclosed?
CVE-2026-12439 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-2026-12439 actively exploited?
CVE-2026-12439 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-12439?
CVE-2026-12439 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-12439?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12439, 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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