Description
A leak of privateClass in the extensions API in Google Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for Mac allowed a remote attacker to access privileged JavaScript code via a crafted HTML page.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Google Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for Mac | Google Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for Mac | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | chromium-browser | 55.0.2883.75-1~deb8u1 | DSA-3731-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | chromium-browser | 55.0.2883.87-0ubuntu0.16.04.1263 | — |
| Ubuntu 14.04 LTS | chromium-browser | 58.0.3029.81-0ubuntu0.14.04.1172 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | chromium-browser | 54.0.2840.100-1.el6 | RHSA-2016:2718 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | chromium | 55.0.2883.75-3.1 | openSUSE-SU-2024:12948-1, openSUSE-SU-2024:10171-1 |
Advisories 4
- RHSA-2016:2718 Red Hat Security Advisory: chromium-browser security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-3731-1 chromium-browser - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10171-1 chromedriver-55.0.2883.75-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12948-1 ungoogled-chromium-113.0.5672.92-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 1037273 vdb-entry
- GLSA-201611-16 vendor-advisory
- https://chromereleases.googleblog.com/2016/11/stable-channel-update-for-desktop_9.html
- 94196 vdb-entry
- RHSA-2016:2718 vendor-advisory
- https://crbug.com/660678