CVE-2026-13803

HIGHPre-NVD 8.38.3—
EchelonGraph scoreHIGH confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
8.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.3Exploit: NoneExposed: 0

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

Type Confusion in Chrome Tabs in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.3
EG Score
8.3(high)
EG Risk
42(Track)
EG Risk 42/100SSVC: 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
Severity83% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
22.5%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Jul 2, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/501669642
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-2026-13803(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 10× in last 7d / 80× 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. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:05 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:30 UTCEPSS rescore
  7. 2026-07-19 02:28 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-16 22:48 UTCVendor advisory
  10. 2026-07-16 22:48 UTCGHSA enrichment
  11. 2026-07-16 17:02 UTCEPSS rescore
  12. 2026-07-16 10:29 UTCVendor advisory
  13. 2026-07-16 10:29 UTCGHSA enrichment
  14. 2026-07-15 22:10 UTCVendor advisory
  15. 2026-07-15 22:10 UTCGHSA enrichment
  16. 2026-07-15 16:57 UTCEPSS rescore
  17. 2026-07-15 09:47 UTCVendor advisory
  18. 2026-07-15 09:47 UTCGHSA enrichment
  19. 2026-07-15 02:00 UTCEPSS rescore
  20. 2026-07-14 21:23 UTCVendor advisory
  21. 2026-07-14 21:23 UTCGHSA enrichment
  22. 2026-07-14 09:04 UTCVendor advisory
  23. 2026-07-14 09:03 UTCGHSA enrichment
  24. 2026-07-13 22:30 UTCEPSS rescore
  25. 2026-07-13 20:44 UTCGHSA enrichment
Show 55 more
  1. 2026-07-13 08:24 UTCGHSA enrichment
  2. 2026-07-13 06:12 UTCEPSS rescore
  3. 2026-07-12 20:05 UTCVendor advisory
  4. 2026-07-12 20:05 UTCGHSA enrichment
  5. 2026-07-12 07:46 UTCVendor advisory
  6. 2026-07-12 07:46 UTCGHSA enrichment
  7. 2026-07-12 05:46 UTCEPSS rescore
  8. 2026-07-11 19:27 UTCVendor advisory
  9. 2026-07-11 19:27 UTCGHSA enrichment
  10. 2026-07-11 08:27 UTCEPSS rescore
  11. 2026-07-11 07:08 UTCVendor advisory
  12. 2026-07-11 07:08 UTCGHSA enrichment
  13. 2026-07-10 18:47 UTCVendor advisory
  14. 2026-07-10 18:47 UTCGHSA enrichment
  15. 2026-07-10 06:27 UTCVendor advisory
  16. 2026-07-10 06:27 UTCGHSA enrichment
  17. 2026-07-09 19:10 UTCEPSS rescore
  18. 2026-07-09 18:06 UTCVendor advisory
  19. 2026-07-09 18:06 UTCGHSA enrichment
  20. 2026-07-09 05:47 UTCVendor advisory
  21. 2026-07-09 05:47 UTCGHSA enrichment
  22. 2026-07-08 17:28 UTCVendor advisory
  23. 2026-07-08 17:28 UTCGHSA enrichment
  24. 2026-07-08 15:15 UTCEPSS rescore
  25. 2026-07-08 15:15 UTCEPSS rescore
  26. 2026-07-08 05:09 UTCVendor advisory
  27. 2026-07-08 05:08 UTCGHSA enrichment
  28. 2026-07-07 16:49 UTCVendor advisory
  29. 2026-07-07 16:49 UTCGHSA enrichment
  30. 2026-07-07 13:46 UTCEPSS rescore
  31. 2026-07-07 04:29 UTCVendor advisory
  32. 2026-07-07 04:29 UTCGHSA enrichment
  33. 2026-07-06 16:27 UTCEPSS rescore
  34. 2026-07-06 16:10 UTCVendor advisory
  35. 2026-07-06 16:10 UTCGHSA enrichment
  36. 2026-07-06 03:47 UTCVendor advisory
  37. 2026-07-06 03:47 UTCGHSA enrichment
  38. 2026-07-06 02:23 UTCEPSS rescore
  39. 2026-07-05 15:27 UTCVendor advisory
  40. 2026-07-05 15:27 UTCGHSA enrichment
  41. 2026-07-05 03:05 UTCVendor advisory
  42. 2026-07-05 03:05 UTCGHSA enrichment
  43. 2026-07-05 02:30 UTCEPSS rescore
  44. 2026-07-05 02:30 UTCEPSS rescore
  45. 2026-07-04 14:44 UTCVendor advisory
  46. 2026-07-04 14:44 UTCGHSA enrichment
  47. 2026-07-04 06:31 UTCEPSS rescore
  48. 2026-07-04 02:25 UTCEG score recompute▲ 8.30
  49. 2026-07-04 02:25 UTCVendor advisory
  50. 2026-07-04 02:25 UTCGHSA enrichment
  51. 2026-07-01 17:06 UTCNVD updateCVSS v3 → 8.3 · severity → HIGH
  52. 2026-07-01 15:06 UTCEPSS rescore
  53. 2026-07-01 15:06 UTCEPSS rescore
  54. 2026-06-30 23:36 UTCEG score recompute
  55. 2026-06-30 23:23 UTCNVD updatefirst tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-13803?
CVE-2026-13803 is a high vulnerability published on June 30, 2026. Type Confusion in Chrome Tabs in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-13803 disclosed?
CVE-2026-13803 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-2026-13803 actively exploited?
CVE-2026-13803 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13803?
CVE-2026-13803 has a CVSS v3.1 base score of 8.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-13803?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13803, 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

Explore the affected products and dependency analysis for CVE-2026-13803

Explore →

Is Your Infrastructure Affected by CVE-2026-13803?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs