CVE-2026-8555

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-14. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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 GTK in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
20.0%
KEV
Not listed

Published

May 14, 2026

Last Modified

May 19, 2026

Advisory Details (2)

Auto-updated May 14, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/500033878
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html

Vendor Advisories for CVE-2026-8555(1)

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 7× in last 7d / 58× 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 169 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-8555?
CVE-2026-8555 is a high vulnerability published on May 14, 2026. Use after free in GTK in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-8555 disclosed?
CVE-2026-8555 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on May 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8555 actively exploited?
CVE-2026-8555 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8555?
CVE-2026-8555 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-8555?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8555, 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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