CVE-2026-87434
LOWCVSS 3.1/10EPSS 0.31%
Last modified
CVE-2026-87434 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. Missing authorization in CORS in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium). EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
Missing authorization in CORS in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 153.0.8010.36 |
References
- https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.htmlRelease Notes, Vendor Advisory
- https://issues.chromium.org/issues/493322521Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-87434?
Missing authorization in CORS in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
How severe is CVE-2026-87434?
CVE-2026-87434 has a CVSS score of 3.1/10 (LOW severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2026-87434?
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
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Are you affected by CVE-2026-87434?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST