Technology · Zen Browser
Zen Browser vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 5 vulnerabilities in Zen Browser: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-45150, was published on 15 July 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About Zen Browser
Web browser based on Firefox with customizable interface and privacy-focused features.
Latest Zen Browser vulnerabilities
- CVE-2026-45150: Zen Browser UI misrepresentation in fullscreen modeinfoCVSS 6.3
- CVE-2026-57501: Zen Browser Privilege Escalation in Glance and Split-View Context MenusinfoCVSS 0
- CVE-2026-44659: Zen Browser address bar spoofing via long subdomainsmediumCVSS 4.7
- CVE-2026-44658: Zen Browser Improper Input Validation in RSS Live-FolderslowCVSS 2.4
- CVE-2026-41431: Zen Browser improper signature verification in MAR updaterhighCVSS 8
Most severe Zen Browser vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-41431: Zen Browser improper signature verification in MAR updaterhighCVSS 8
- CVE-2026-44659: Zen Browser address bar spoofing via long subdomainsmediumCVSS 4.7
- CVE-2026-44658: Zen Browser Improper Input Validation in RSS Live-FolderslowCVSS 2.4
- CVE-2026-45150: Zen Browser UI misrepresentation in fullscreen modeinfoCVSS 6.3
- CVE-2026-57501: Zen Browser Privilege Escalation in Glance and Split-View Context MenusinfoCVSS 0
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Zen Browser vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/zen-browser)<a href="https://junglewise.ai/threats/technologies/zen-browser"><img src="https://junglewise.ai/threats/technologies/zen-browser/badge.svg" alt="Zen Browser vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/zen-browser.json, and this page as text at https://junglewise.ai/threats/technologies/zen-browser.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Zen Browser vulnerabilities", https://junglewise.ai/threats/technologies/zen-browser, 9 November 2026.