CVE-2026-91736

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-15. 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
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

Use after free in DOM in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the 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
8.8HIGHhigh confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
25th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 15, 2026

Last Modified

September 17, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/553121008
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html

Vendor Advisories for CVE-2026-91736(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 37× in last 7d / 105× 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 105 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-91736?
CVE-2026-91736 is a high vulnerability published on September 15, 2026. Use after free in DOM in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-91736 disclosed?
CVE-2026-91736 was first published on September 15, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-91736 actively exploited?
CVE-2026-91736 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-91736?
CVE-2026-91736 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-91736?
No fix for CVE-2026-91736 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-91736 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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