CVE-2026-87431

HIGHNVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-09. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

Missing authorization in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain sensitive information via a crafted Chrome extension. (Chromium security severity: Medium)

CVSS v3
7.5
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

September 9, 2026

Last Modified

September 10, 2026

Advisory Details (2)

Auto-updated Sep 10, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/523313374
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html

Vendor Advisories for CVE-2026-87431(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.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 39× 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.

  1. 2026-09-25 01:55 UTCEG score recompute
  2. 2026-09-25 01:55 UTCVendor advisory
  3. 2026-09-25 01:55 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 13:46 UTCVendor advisory
  6. 2026-09-24 13:46 UTCGHSA enrichment
  7. 2026-09-24 01:37 UTCEG score recompute
  8. 2026-09-24 01:37 UTCVendor advisory
  9. 2026-09-24 01:37 UTCGHSA enrichment
  10. 2026-09-23 17:54 UTCEPSS rescore
  11. 2026-09-23 13:29 UTCVendor advisory
  12. 2026-09-23 13:29 UTCGHSA enrichment
  13. 2026-09-23 01:21 UTCEG score recompute
  14. 2026-09-23 01:21 UTCVendor advisory
  15. 2026-09-23 01:21 UTCGHSA enrichment
  16. 2026-09-22 16:01 UTCEPSS rescore
  17. 2026-09-22 13:12 UTCVendor advisory
  18. 2026-09-22 13:12 UTCGHSA enrichment
  19. 2026-09-22 01:04 UTCEG score recompute
  20. 2026-09-22 01:04 UTCVendor advisory
  21. 2026-09-22 01:03 UTCGHSA enrichment
  22. 2026-09-21 21:09 UTCEPSS rescore
  23. 2026-09-21 12:55 UTCVendor advisory
  24. 2026-09-21 12:55 UTCGHSA enrichment
  25. 2026-09-21 00:47 UTCEG score recompute
Show 60 more
  1. 2026-09-21 00:47 UTCVendor advisory
  2. 2026-09-21 00:47 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 12:38 UTCVendor advisory
  5. 2026-09-20 12:38 UTCGHSA enrichment
  6. 2026-09-20 00:30 UTCEG score recompute
  7. 2026-09-20 00:30 UTCVendor advisory
  8. 2026-09-20 00:30 UTCGHSA enrichment
  9. 2026-09-19 12:21 UTCVendor advisory
  10. 2026-09-19 12:21 UTCGHSA enrichment
  11. 2026-09-19 00:13 UTCEG score recompute
  12. 2026-09-19 00:13 UTCVendor advisory
  13. 2026-09-19 00:13 UTCGHSA enrichment
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-18 12:04 UTCVendor advisory
  16. 2026-09-18 12:04 UTCGHSA enrichment
  17. 2026-09-17 23:55 UTCEG score recompute
  18. 2026-09-17 23:55 UTCVendor advisory
  19. 2026-09-17 23:55 UTCGHSA enrichment
  20. 2026-09-17 19:32 UTCEPSS rescore
  21. 2026-09-17 10:34 UTCVendor advisory
  22. 2026-09-17 10:34 UTCGHSA enrichment
  23. 2026-09-16 22:25 UTCEG score recompute
  24. 2026-09-16 22:25 UTCVendor advisory
  25. 2026-09-16 22:24 UTCGHSA enrichment
  26. 2026-09-16 14:09 UTCEPSS rescore
  27. 2026-09-16 10:06 UTCEG score recompute
  28. 2026-09-16 10:06 UTCVendor advisory
  29. 2026-09-16 10:06 UTCGHSA enrichment
  30. 2026-09-16 05:15 UTCEPSS rescore
  31. 2026-09-15 21:57 UTCVendor advisory
  32. 2026-09-15 21:57 UTCGHSA enrichment
  33. 2026-09-15 09:48 UTCEG score recompute
  34. 2026-09-15 09:48 UTCVendor advisory
  35. 2026-09-15 09:48 UTCGHSA enrichment
  36. 2026-09-15 03:12 UTCEPSS rescore
  37. 2026-09-15 03:12 UTCEPSS rescore
  38. 2026-09-14 21:39 UTCGHSA enrichment
  39. 2026-09-14 09:30 UTCGHSA enrichment
  40. 2026-09-13 21:22 UTCEG score recompute
  41. 2026-09-13 21:22 UTCGHSA enrichment
  42. 2026-09-13 09:13 UTCGHSA enrichment
  43. 2026-09-12 21:05 UTCEG score recompute
  44. 2026-09-12 21:05 UTCGHSA enrichment
  45. 2026-09-12 08:56 UTCGHSA enrichment
  46. 2026-09-11 20:48 UTCEG score recompute
  47. 2026-09-11 20:48 UTCGHSA enrichment
  48. 2026-09-11 14:53 UTCEPSS rescore
  49. 2026-09-11 14:53 UTCEPSS rescore
  50. 2026-09-11 08:27 UTCGHSA enrichment
  51. 2026-09-10 20:18 UTCGHSA enrichment
  52. 2026-09-10 19:20 UTCEG score recompute
  53. 2026-09-10 19:20 UTCGHSA enrichment
  54. 2026-09-10 13:57 UTCEG score recompute▲ 1.00
  55. 2026-09-10 13:57 UTCGHSA enrichment
  56. 2026-09-10 13:56 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  57. 2026-09-09 15:54 UTCGHSA enrichment
  58. 2026-09-09 01:22 UTCNVD update
  59. 2026-09-09 00:59 UTCEG score recompute
  60. 2026-09-09 00:57 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-87431?
CVE-2026-87431 is a high vulnerability published on September 9, 2026. Missing authorization in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain sensitive information via a crafted Chrome extension. (Chromium security severity: Medium)
When was CVE-2026-87431 disclosed?
CVE-2026-87431 was first published in the National Vulnerability Database on September 9, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-87431 actively exploited?
CVE-2026-87431 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 77.7% of all scored CVEs.
What is the CVSS score of CVE-2026-87431?
CVE-2026-87431 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-87431?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-87431, 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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