CVE-2026-87577
MEDIUMCVSS 4.3/10EPSS 0.19%
Last modified
CVE-2026-87577 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Incorrect authorization in Isolated in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: Medium). EPSS estimates a 0.19% chance of exploitation in the next 30 days.
Description
Incorrect authorization in Isolated in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy into a privileged page 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.htmlVendor Advisory, Release Notes
- https://issues.chromium.org/issues/501700023Exploit, Issue Tracking
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-87577?
Incorrect authorization in Isolated in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: Medium)
How severe is CVE-2026-87577?
CVE-2026-87577 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.
How do I fix CVE-2026-87577?
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
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
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Are you affected by CVE-2026-87577?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST