CVE-2026-15902

CRITICALPre-NVD 8.89.6▲
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-21. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.8.

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: 8.8Exploit: 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 Cast in Google Chrome prior to 150.0.7871.128 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.8
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
9.6(medium)
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
28%
KEV
Not listed

Published

July 20, 2026

Last Modified

July 24, 2026

Advisory Details (2)

Auto-updated Jul 22, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/522436154
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_049796704.html

Vendor Advisories for CVE-2026-15902(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 (500 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium113.0.5672.126-1 ... 150.0.7871.46-1~deb13u1 (390 versions)150.0.7871.181-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 150.0.7871.46-1~deb13u1 (156 versions)150.0.7871.181-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 150.0.7871.46-1~deb13u1 (157 versions)150.0.7871.181-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 62× in last 7d / 348× 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 1,374 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-15902?
CVE-2026-15902 is a critical vulnerability published on July 20, 2026. Use after free in Cast in Google Chrome prior to 150.0.7871.128 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-15902 disclosed?
CVE-2026-15902 was first published in the National Vulnerability Database on July 20, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15902 actively exploited?
CVE-2026-15902 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 72.4% of all scored CVEs.
What is the CVSS score of CVE-2026-15902?
CVE-2026-15902 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.6.
How do I remediate CVE-2026-15902?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15902, 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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