Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
7DescriptionCVE.org
Inappropriate implementation in Passwords in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Same-origin policy bypass in Google Chrome's Passwords component prior to version 149.0.7827.53 allows remote attackers to access cross-origin resources via a crafted HTML page that a victim must visit. Rated High severity by Chromium with a CVSS of 8.1, the flaw enables exposure or modification of sensitive data across origin boundaries when a user is lured to attacker-controlled content. EPSS probability is very low (0.02%, 4th percentile) and no public exploit identified at time of analysis, but a vendor patch is available.
Technical ContextAI
The vulnerability lives in Chrome's Passwords subsystem, the component that manages stored credentials, autofill, and password-related UI surfaces. CWE-346 (Origin Validation Error) indicates that the implementation fails to correctly verify the origin of a request, message, or context before granting access - effectively breaking the Same-Origin Policy that isolates content from different web origins. In browser-internal code, this class of bug typically arises when an iframe, postMessage handler, navigation, or autofill flow trusts data without re-validating the originating security context, allowing one origin to influence behavior intended only for another. The affected product per the EUVD record is Chrome builds below 149.0.7827.53 across desktop channels referenced in the Chrome Releases blog.
RemediationAI
Upgrade Google Chrome to version 149.0.7827.53 or later on all desktop platforms - Vendor-released patch: 149.0.7827.53, as announced in the Chrome Releases stable channel update (https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html). For managed fleets, force a browser relaunch via group policy or MDM (e.g., RelaunchNotification) to ensure the update takes effect, since Chrome's background updater stages binaries but requires a restart to load them. If immediate patching is not possible, compensating controls include restricting browsing to trusted sites via enterprise URL allowlists (trade-off: breaks general web usage), disabling the built-in password manager via the PasswordManagerEnabled policy and routing users to an enterprise password manager (trade-off: removes autofill convenience and may push users to weaker storage), and instructing users to avoid clicking untrusted links until the update is applied; additional context is available in the Chromium issue tracker entry at https://issues.chromium.org/issues/502651056.
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player
V8 in Google Chrome prior to 54.0.2840.90 for Linux, and 54.0.2840.85 for Android, and 54.0.2840.87 for Windows and Mac
Type confusion in V8 in Google Chrome prior to 59.0.3071.86 for Linux, Windows, and Mac, and 59.0.3071.92 for Android, a
The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, do
Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderb
Incorrect handling of complex species in V8 in Google Chrome prior to 57.0.2987.98 for Linux, Windows, and Mac and 57.0.
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbi
An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Conta
The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbi
The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and Se
Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13
Same weakness CWE-346 – Origin Validation Error
View allSame technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: High| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-34386
GHSA-wccx-fxf3-qg7r