CVE-2026-16421
HIGHCVSS 8.8/10EPSS 0.22%
Last modified
CVE-2026-16421 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Inappropriate implementation in WebAudio in Google Chrome prior to 150.0.7871.182 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High). EPSS estimates a 0.22% chance of exploitation in the next 30 days.
Description
Inappropriate implementation in WebAudio in Google Chrome prior to 150.0.7871.182 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 150.0.7871.182 |
References
- https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0256605430.htmlRelease Notes, Vendor Advisory
- https://issues.chromium.org/issues/528276487Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-16421?
Inappropriate implementation in WebAudio in Google Chrome prior to 150.0.7871.182 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
How severe is CVE-2026-16421?
CVE-2026-16421 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-16421?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-16416Integer overflow in Chromecast in Google Chrome prior to 150…8.3
- CVE-2026-16417Uninitialized Use in Skia in Google Chrome prior to 150.0.78…3.1
- CVE-2026-16418Stack buffer overflow in V8 in Google Chrome prior to 150.0.…8.8
- CVE-2026-16419Out of bounds read and write in ANGLE in Google Chrome on An…9.6
- CVE-2026-1642A vulnerability exists in NGINX OSS and NGINX Plus when conf…8.2
- CVE-2026-16420Type Confusion in WebAudio in Google Chrome prior to 150.0.7…8.8
- CVE-2026-16422Insufficient validation of untrusted input in Certificate in…7.5
- CVE-2026-16423Use after free in UI in Google Chrome prior to 150.0.7871.18…8.8
- CVE-2026-16424Use after free in GPU in Google Chrome on Android prior to 1…9.6
- CVE-2026-1643The MP-Ukagaka plugin for WordPress is vulnerable to Reflect…6.1
- CVE-2026-16439In Eclipse OpenJ9 versions up to 0.60, using -Xtrace to trac…5.8
- CVE-2026-1644The WP Frontend Profile plugin for WordPress is vulnerable t…4.3
Are you affected by CVE-2026-16421?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST