CVE-2026-9886
published 2026-05-28CVE-2026-9886: Use after free in Base in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML…
PriorityP352critical9.6CVSS 3.1
AVNACLPRNUIRSCCHIHAH
EPSS
0.24%
15.6th percentile
Use after free in Base in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 148.0.7778.216 | 148.0.7778.216 | |
| chrome | >= 148.0.7778.216 < 148.0.7778.216 | 148.0.7778.216 | |
| chrome_desktop | — | — | |
| paloalto | prisma_browser | — | — |
CVSS provenance
nvdv3.19.6CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
vendor_redhat9.6CRITICAL
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Palo Alto
PAN-SA-2026-0008 Chromium: Monthly Vulnerability Update (June 2026)
vendor_paloalto·2026-06-10·CVSS 8.8
CVE-2026-8509 [HIGH] PAN-SA-2026-0008 Chromium: Monthly Vulnerability Update (June 2026)
PAN-SA-2026-0008 Chromium: Monthly Vulnerability Update (June 2026)
Palo Alto Networks incorporated the following Chromium security fixes into our products: https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193308.html https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html CVE Summary CVE-2026-8509 Heap buffer overflow in WebML CVE-2026-8510 Integer overflow in Skia CVE-2026-8511 Use after free in UI CVE-2026-8512 Use after free in FileSystem CVE-2026-8513 Use after free in Input CVE-2026-8514 Use after free in Aura CVE-2026-8515 Use after free
Red Hat
chromium-browser: Use after free in Base
vendor_redhat·2026-05-27·CVSS 9.6
CVE-2026-9886 [CRITICAL] CWE-825 chromium-browser: Use after free in Base
chromium-browser: Use after free in Base
An use after free flaw was found in the Base component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=508456788
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Chrome
Stable Channel Update for Desktop: CVE-2026-9884
vendor_chrome·2026-05-27
CVE-2026-9884 [CRITICAL] Stable Channel Update for Desktop: CVE-2026-9884
Stable Channel Update for Desktop
CVE-2026-9884: Use after free in Browser. Reported by Google on 2026-04-30 [N/A][ 508452241 ] Critical CVE-2026-9885: Insufficient validation of untrusted input in UI
Reported by Google on 2026-05-01 [N/A][ 508456788 ] Critical CVE-2026-9886: Use after free in Base
Severity: critical
VulDB
Google Chrome up to 148.0.7778.179 on macOS Base use after free (ID 508456 / WID-SEC-2026-1733)
vuldb·2026-05-30·CVSS 9.6
CVE-2026-9886 [CRITICAL] Google Chrome up to 148.0.7778.179 on macOS Base use after free (ID 508456 / WID-SEC-2026-1733)
A vulnerability categorized as critical has been discovered in Google Chrome on macOS. This affects an unknown function of the component Base. The manipulation results in use after free.
This vulnerability is known as CVE-2026-9886. It is possible to launch the attack remotely. No exploit is available.
It is advisable to upgrade the affected component.
GHSA
GHSA-rmrv-48gv-336h: Use after free in Base in Google Chrome on Mac prior to 148
ghsa_unreviewed·2026-05-29
CVE-2026-9886 [CRITICAL] CWE-416 GHSA-rmrv-48gv-336h: Use after free in Base in Google Chrome on Mac prior to 148
Use after free in Base in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-9872 CVE-2026-9873 CVE-2026-9874 CVE-2026-9875 CVE-2026-9876 CVE-2026-9877 CVE-2026-9878 CVE-2026-9879 CVE-2026-9880 CVE-2026-9881 CVE-2026-9882 CVE-2026-9883 CVE-2026-9884 CVE-2026-9885 CVE-
bugzilla·2026-06-01·CVSS 9.6
CVE-2026-9872 [CRITICAL] CVE-2026-9872 CVE-2026-9873 CVE-2026-9874 CVE-2026-9875 CVE-2026-9876 CVE-2026-9877 CVE-2026-9878 CVE-2026-9879 CVE-2026-9880 CVE-2026-9881 CVE-2026-9882 CVE-2026-9883 CVE-2026-9884 CVE-2026-9885 CVE-
CVE-2026-9872 CVE-2026-9873 CVE-2026-9874 CVE-2026-9875 CVE-2026-9876 CVE-2026-9877 CVE-2026-9878 CVE-2026-9879 CVE-2026-9880 CVE-2026-9881 CVE-2026-9882 CVE-2026-9883 CVE-2026-9884 CVE-2026-9885 CVE-2026-9886 ... chromium: various flaws [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-9872 CVE-2026-9873 CVE-2026-9874 CVE-2026-9875 CVE-2026-9876 CVE-2026-9877 CVE-2026-9878 CVE-2026-9879 CVE-2026-9880 CVE-2026-9881 CVE-2026-9882 CVE-2026-9883 CVE-2026-9884 CVE-2026-9885 CVE-
bugzilla·2026-06-01·CVSS 9.6
CVE-2026-9872 [CRITICAL] CVE-2026-9872 CVE-2026-9873 CVE-2026-9874 CVE-2026-9875 CVE-2026-9876 CVE-2026-9877 CVE-2026-9878 CVE-2026-9879 CVE-2026-9880 CVE-2026-9881 CVE-2026-9882 CVE-2026-9883 CVE-2026-9884 CVE-2026-9885 CVE-
CVE-2026-9872 CVE-2026-9873 CVE-2026-9874 CVE-2026-9875 CVE-2026-9876 CVE-2026-9877 CVE-2026-9878 CVE-2026-9879 CVE-2026-9880 CVE-2026-9881 CVE-2026-9882 CVE-2026-9883 CVE-2026-9884 CVE-2026-9885 CVE-2026-9886 ... chromium: various flaws [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-9886 chromium-browser: Use after free in Base
bugzilla·2026-05-28
CVE-2026-9886 [CRITICAL] CVE-2026-9886 chromium-browser: Use after free in Base
CVE-2026-9886 chromium-browser: Use after free in Base
Use after free in Base in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
2026-05-28
Published