CVE-2026-118333
published 2026-10-27CVE-2026-118333: Missing authorization in Video in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium…
PriorityP351critical9.3CVSS 3.1
AVNACLPRNUIRSCCHIHAN
EPSS
0.19%
9.2th percentile
Missing authorization in Video in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 156.0.8078.73 | 156.0.8078.73 | |
| chrome | >= 156.0.8078.73 < 156.0.8078.73 | 156.0.8078.73 | |
| chrome_desktop | — | — |
CVSS provenance
nvdv3.19.3CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
vendor_redhat8.8HIGH
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Chrome
Stable Channel Update for Desktop: CVE-2026-118328
vendor_chrome·2026-10-27
CVE-2026-118328 [HIGH] Stable Channel Update for Desktop: CVE-2026-118328
Stable Channel Update for Desktop
CVE-2026-118328: Improper input validation in WebRTC. Reported by Mozilla on 2026-10-07 [N/A][ 571147583 ] High CVE-2026-118333: Missing authorization in Video
Reported by Xinyang Ge (Anthropic), assisted by Claude on 2026-10-07 [TBD][ 572111820 ] High CVE-2026-118336: Improper input validation in Headless
Severity: high
Red Hat
chromium-browser: Missing authorization in Video
vendor_redhat·2026-10-27·CVSS 8.8
CVE-2026-118333 [HIGH] CWE-862 chromium-browser: Missing authorization in Video
chromium-browser: Missing authorization in Video
Missing authorization in Video in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
A missing authorization flaw was found in the Video component of the Chromium browser.
Upstream bug(s):
https://issues.chromium.org/issues/571147583
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
GHSA
Missing authorization in Video in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to bypass web origin policy via a crafted HTML page.
ghsa_unreviewed·2026-10-28
CVE-2026-118333 CWE-862 Missing authorization in Video in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to bypass web origin policy via a crafted HTML page.
Missing authorization in Video in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
VulDB
Google Chrome up to 156.0.8078.47 Video improper authorization
vuldb·2026-10-28
CVE-2026-118333 [CRITICAL] Google Chrome up to 156.0.8078.47 Video improper authorization
A vulnerability, which was classified as critical, has been found in Google Chrome. This vulnerability affects unknown code of the component Video. Performing a manipulation results in improper authorization.
This vulnerability is reported as CVE-2026-118333. The attack is possible to be carried out remotely. No exploit exists.
It is advisable to upgrade the affected component.
No detection rules found.
No public exploits indexed.
2026-10-27
Published