CVE-2026-17854
published 2026-07-30CVE-2026-17854: Insufficient policy enforcement in WebMCP in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML…
PriorityP432medium6.5CVSS 3.1
AVNACLPRNUIRSUCNIHAN
EPSS
0.17%
6.2th percentile
Insufficient policy enforcement in WebMCP in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 151.0.7922.72 | 151.0.7922.72 | |
| chrome | >= 151.0.7922.72 < 151.0.7922.72 | 151.0.7922.72 | |
| chrome_desktop | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
vendor_redhat6.5MEDIUM
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Red Hat
chromium-browser: chromium-browser: Insufficient policy enforcement in WebMCP
vendor_redhat·2026-07-30·CVSS 6.5
CVE-2026-17854 [MEDIUM] CWE-346 chromium-browser: chromium-browser: Insufficient policy enforcement in WebMCP
chromium-browser: chromium-browser: Insufficient policy enforcement in WebMCP
An insufficient policy enforcement flaw was found in the WebMCP component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=519500882
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-2026-17852
vendor_chrome·2026-07-29
CVE-2026-17852 [MEDIUM] Stable Channel Update for Desktop: CVE-2026-17852
Stable Channel Update for Desktop
CVE-2026-17852: Inappropriate implementation in Media Router. Reported by Google on 2026-06-03 [TBD][ 519472272 ] Medium CVE-2026-17853: Inappropriate implementation in DevTools
Reported by Orange Tsai (@orange_8361) of DEVCORE Research Team on 2026-06-03 [N/A][ 519500882 ] Medium CVE-2026-17854: Insufficient policy enforcement in WebMCP
Severity: medium
GHSA
Insufficient policy enforcement in WebMCP in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page.
ghsa_unreviewed·2026-07-30
CVE-2026-17854 [MEDIUM] CWE-346 Insufficient policy enforcement in WebMCP in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page.
Insufficient policy enforcement in WebMCP in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
No detection rules found.
No public exploits indexed.
2026-07-30
Published