CVE-2026-19166

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-07. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: None knownExposed: 0

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

Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

CVSS v3
9.6
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
9.6(high)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 8, 2026

Advisory Details (2)

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

Chromium

https://issues.chromium.org/issues/536584251
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01193673229.html

Vendor Advisories for CVE-2026-19166(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
chromium100.0.4896.127-1 ... 99.0.4844.84-1~deb11u1 (503 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium113.0.5672.126-1 ... 151.0.7922.71-1~deb13u1 (400 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb13u1 (163 versions)151.0.7922.108-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb13u1 (165 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 95× in last 7d / 172× 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 172 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-19166?
CVE-2026-19166 is a critical vulnerability published on August 6, 2026. Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-19166 disclosed?
CVE-2026-19166 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19166 actively exploited?
CVE-2026-19166 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.4% of all scored CVEs.
What is the CVSS score of CVE-2026-19166?
CVE-2026-19166 has a CVSS v3.1 base score of 9.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-19166?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19166, 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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