CVE-2026-8517

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.

Object lifecycle issue in WebShare in Google Chrome on Mac prior to 148.0.7778.168 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code via a crafted HTML page. (Chromium security severity: Critical)

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
39.1%
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/497531263
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-2026-8517(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 11× in last 7d / 85× 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 182 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-8517?
CVE-2026-8517 is a high vulnerability published on May 14, 2026. Object lifecycle issue in WebShare in Google Chrome on Mac prior to 148.0.7778.168 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code via a crafted HTML page. (Chromium security severity: Critical)
When was CVE-2026-8517 disclosed?
CVE-2026-8517 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-2026-8517 actively exploited?
CVE-2026-8517 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8517?
CVE-2026-8517 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-8517?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8517, 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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