CVE-2026-9116
MEDIUMCVSS 4.3/10EPSS 0.22%
Last modified
CVE-2026-9116 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High). EPSS estimates a 0.22% chance of exploitation in the next 30 days.
Description
Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 148.0.7778.179 |
References
- https://issues.chromium.org/issues/497436273Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-9116?
Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
How severe is CVE-2026-9116?
CVE-2026-9116 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-9116?
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-2026-9110Inappropriate implementation in UI in Google Chrome on Windo…4.2
- CVE-2026-9111Use after free in WebRTC in Google Chrome on Linux prior to …8.8
- CVE-2026-9112Use after free in GPU in Google Chrome on Windows prior to 1…8.8
- CVE-2026-9113Out of bounds read in GPU in Google Chrome on Mac prior to 1…4.3
- CVE-2026-9114Use after free in QUIC in Google Chrome on prior to 148.0.77…8.8
- CVE-2026-9115Insufficient policy enforcement in Service Worker in Google …4.3
- CVE-2026-9117Type Confusion in GFX in Google Chrome on Linux, ChromeOS pr…7.5
- CVE-2026-9118Use after free in XR in Google Chrome on Windows prior to 14…8.8
- CVE-2026-9119Heap buffer overflow in WebRTC in Google Chrome on prior to …8.8
- CVE-2026-9120Use after free in WebRTC in Google Chrome prior to 148.0.777…8.8
- CVE-2026-9121Out of bounds read in GPU in Google Chrome on prior to 148.0…8.8
- CVE-2026-9122Out of bounds read in GPU in Google Chrome on Mac prior to 1…6.5
Are you affected by CVE-2026-9116?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST