Patch tracker / CVE reference / CVE-2026-5918

CVE-2026-5918

Inappropriate implementation in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to potentially leak cross-origin data via a crafted HTML page. Chromium severity: Low.

Risk summary

Medium

4.3

CVSS v3 base

Medium

Severity

Not listed

Actively exploited

Medium severity vulnerability, CVSS 4.3.

How to fix CVE-2026-5918 Admin questions

Senserva AI Opinion and rich prompt for CVE-2026-5918

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I am an IT admin assessing a vulnerability. Facts for CVE-2026-5918 (source: https://senserva.com/cve/CVE-2026-5918.html, data from CISA KEV and NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2026-5918: Medium severity vulnerability, CVSS 4.3
- Actively exploited (CISA KEV): no
- Affected: Google Chrome
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) What to patch or mitigate first. 4) How to check whether my devices are exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Schedule normally

No exploitation observed: not in the CISA KEV catalog, EPSS under 1%.

No vendor fix is mapped yet. This page refreshes daily and will name the patch the day one is published.

Do this now: Deploy with your normal update cycle. This page refreshes daily; the verdict changes the day the data does.

Updated August 21, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.

How to fix CVE-2026-5918

Update Google Chrome to version 147.0.7727.55 or later. (Fixed-version data from NVD.) Where a workaround exists, apply it only until the update is deployed, not as a substitute.

Vendor advisory NVD detail

Common questions about CVE-2026-5918

Is CVE-2026-5918 actively exploited?

It is not currently listed in the CISA Known Exploited Vulnerabilities catalog. That can change: unexploited CVEs regularly get weaponized months after disclosure, which is why patching on your normal cadence matters.

What fixes CVE-2026-5918?

Update Google Chrome to version 147.0.7727.55 or later. Fixed-version data from NVD; the vendor advisory linked on this page has the details.

Which products are affected by CVE-2026-5918?

Google Chrome.

Can I ask my own AI about CVE-2026-5918?

Yes. This page includes a free, ready-to-paste AI prompt with CVE-2026-5918's key facts: severity, CVSS, CISA KEV status, and the affected products. Copy it into Claude, ChatGPT, or Copilot for a triage plan.

Scope and sources

Affected products

Google Chrome

Authoritative references

CVE record NVD detail

Every Microsoft CVE and the patches that fix it, ranked by real-world risk: the Microsoft Patch Tracker. The full searchable CVE reference: CVE and vulnerability management.