CVE-2026-14040

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. 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 — 5 sources updated this week
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.

Use after free in BrowserTag in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: Low)

CVSS v3
8.8
EG Score
8.8(high)
EPSS
11.3%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Jul 1, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/497488593
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html

Vendor Advisories for CVE-2026-14040(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 34× in last 7d / 34× 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. 2026-07-07 03:42 UTCEG score recompute
  2. 2026-07-07 03:42 UTCVendor advisory
  3. 2026-07-07 03:42 UTCGHSA enrichment
  4. 2026-07-06 16:27 UTCEG score recompute
  5. 2026-07-06 16:27 UTCVendor advisory
  6. 2026-07-06 16:27 UTCGHSA enrichment
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 05:10 UTCEG score recompute
  9. 2026-07-06 05:10 UTCVendor advisory
  10. 2026-07-06 05:10 UTCGHSA enrichment
  11. 2026-07-06 02:23 UTCEPSS rescore
  12. 2026-07-05 17:58 UTCEG score recompute
  13. 2026-07-05 17:58 UTCVendor advisory
  14. 2026-07-05 17:58 UTCGHSA enrichment
  15. 2026-07-05 06:46 UTCEG score recompute
  16. 2026-07-05 06:46 UTCVendor advisory
  17. 2026-07-05 06:46 UTCGHSA enrichment
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 19:35 UTCEG score recompute
  21. 2026-07-04 19:35 UTCVendor advisory
  22. 2026-07-04 19:35 UTCGHSA enrichment
  23. 2026-07-04 08:24 UTCEG score recompute
  24. 2026-07-04 08:24 UTCVendor advisory
  25. 2026-07-04 08:24 UTCGHSA enrichment
Show 9 more
  1. 2026-07-04 06:31 UTCEPSS rescore
  2. 2026-07-03 21:12 UTCEG score recompute▲ 8.80
  3. 2026-07-03 21:12 UTCVendor advisory
  4. 2026-07-03 21:11 UTCGHSA enrichment
  5. 2026-07-01 21:08 UTCNVD updateCVSS v3 → 8.8 · severity → HIGH
  6. 2026-07-01 15:06 UTCEPSS rescore
  7. 2026-07-01 15:06 UTCEPSS rescore
  8. 2026-06-30 23:27 UTCEG score recompute
  9. 2026-06-30 23:23 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-14040?
CVE-2026-14040 is a high vulnerability published on June 30, 2026. Use after free in BrowserTag in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: Low)
When was CVE-2026-14040 disclosed?
CVE-2026-14040 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14040 actively exploited?
CVE-2026-14040 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-14040?
CVE-2026-14040 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-14040?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14040, 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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