What is CVE-2026-87482?

CVE-2026-87482 is a medium-severity vulnerability in Google Chrome, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2026-09-09.

How severe is CVE-2026-87482?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Google Chrome

CVE-2026-87482

Cleartext transmission of sensitive data in HttpsUpgrades in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote attacker to leak sensitive information via crafted network traffic. (Chromium security severity: Medium)

Published 2026-09-09 · last modified 2026-09-10.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.3th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Chrome

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/503736006 (Exploit, Patch, Issue Tracking)

Frequently asked questions

What is CVE-2026-87482?: CVE-2026-87482 is a medium-severity vulnerability in Google Chrome, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2026-09-09.
How severe is CVE-2026-87482?: Medium severity. CVSS v3 base score is 5.9 out of 10.