CVE-2026-13921 - Vulnerability Details

Description

Insufficient validation of untrusted input in DeviceBoundSessionCredentials in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)

Published: 2026-06-30

Score: 6.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

Google Chrome contains an input validation flaw in the DeviceBoundSessionCredentials module that allows a remote attacker to bypass the browser’s same‑origin policy via a crafted HTML page. The CVE description states only this bypass; no other effects are detailed in the official data.

Affected Systems

Google Chrome versions released before 150.0.7871.47 are affected. Older releases in the desktop stable channel lack the patch that restores proper validation of DeviceBoundSessionCredentials input, leaving them vulnerable.

Risk and Exploitability

The CVSS score of 6.5 indicates medium severity. The EPSS score of <1% shows a very low but nonzero likelihood of exploitation. The vulnerability is not listed in the CISA KEV catalog. Based on the description, it is inferred that a successful attack requires the user to load a specially crafted HTML page, suggesting a user interaction is needed.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Google

Chrome

affected

Version	Status	Constraints
`150.0.7871.47`	affected	< 150.0.7871.47

No data.

Vendor Product Confidence Versions

Google

Chrome

100%

Version	Status	Scheme	Platform
`[150.0.7871.47,150.0.7871.47)`	affected	generic	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Upgrade Google Chrome to version 150.0.7871.47 or newer to address the input validation flaw (CWE‑20).
Enable automatic updates so that future security releases are applied without manual intervention.
Employ web‑filtering or antivirus solutions that block known malicious sites to reduce exposure to crafted HTML pages that could exploit the flaw.

Generated by OpenCVE AI on July 16, 2026 at 12:27 UTC.

Tracking

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Advisories

Source	ID	Title
Debian DLA	DLA-4672-1	chromium security update
Debian DSA	DSA-6378-1	chromium security update

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00319.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html
https://issues.chromium.org/issues/511738175

History

Thu, 16 Jul 2026 12:45:00 +0000

Type	Values Removed	Values Added
Title	Same-Origin Policy Bypass via DeviceBoundSessionCredentials Input Validation Failure

Tue, 14 Jul 2026 20:45:00 +0000

Type	Values Removed	Values Added
Title		Same-Origin Policy Bypass via DeviceBoundSessionCredentials Input Validation Failure

Tue, 14 Jul 2026 01:30:00 +0000

Type	Values Removed	Values Added
Title	Same-Origin Policy Bypass via DeviceBoundSessionCredentials in Google Chrome

Mon, 13 Jul 2026 05:30:00 +0000

Type	Values Removed	Values Added
Title		Same-Origin Policy Bypass via DeviceBoundSessionCredentials in Google Chrome

Sun, 12 Jul 2026 11:00:00 +0000

Type	Values Removed	Values Added
Title	Chrome Same‑Origin Policy Bypass via DeviceBoundSessionCredentials Input Validation Flaw

Sat, 11 Jul 2026 09:30:00 +0000

Type	Values Removed	Values Added
Title		Chrome Same‑Origin Policy Bypass via DeviceBoundSessionCredentials Input Validation Flaw

Fri, 10 Jul 2026 04:15:00 +0000

Type	Values Removed	Values Added
Title	Chrome Same‑Origin Policy Bypass via DeviceBoundSessionCredentials Validation Flaw

Wed, 08 Jul 2026 20:00:00 +0000

Type	Values Removed	Values Added
Title		Chrome Same‑Origin Policy Bypass via DeviceBoundSessionCredentials Validation Flaw

Wed, 08 Jul 2026 03:45:00 +0000

Type	Values Removed	Values Added
Title	Same-Origin Policy Bypass via Unvalidated DeviceBoundSessionCredentials

Tue, 07 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Title		Same-Origin Policy Bypass via Unvalidated DeviceBoundSessionCredentials

Tue, 07 Jul 2026 04:30:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation of DeviceBoundSessionCredentials Enables Same-Origin Policy Bypass in Google Chrome

Mon, 06 Jul 2026 16:45:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation of DeviceBoundSessionCredentials Enables Same-Origin Policy Bypass in Google Chrome

Mon, 06 Jul 2026 07:45:00 +0000

Type	Values Removed	Values Added
Title	Chrome Same‑Origin Policy Bypass via DeviceBoundSessionCredentials Input Validation Flaw

Sun, 05 Jul 2026 11:45:00 +0000

Type	Values Removed	Values Added
Title		Chrome Same‑Origin Policy Bypass via DeviceBoundSessionCredentials Input Validation Flaw

Sat, 04 Jul 2026 20:00:00 +0000

Type	Values Removed	Values Added
Title	Same-Origin Policy Bypass via Unvalidated DeviceBoundSessionCredentials in Chrome

Sat, 04 Jul 2026 08:00:00 +0000

Type	Values Removed	Values Added
Title		Same-Origin Policy Bypass via Unvalidated DeviceBoundSessionCredentials in Chrome

Fri, 03 Jul 2026 20:15:00 +0000

Type	Values Removed	Values Added
Title	Same-Origin Policy Bypass via DeviceBoundSessionCredentials Flaw in Google Chrome

Fri, 03 Jul 2026 09:15:00 +0000

Type	Values Removed	Values Added
Title		Same-Origin Policy Bypass via DeviceBoundSessionCredentials Flaw in Google Chrome

Thu, 02 Jul 2026 23:00:00 +0000

Type	Values Removed	Values Added
Title	Same-Origin Policy Bypass via Untrusted Input in DeviceBoundSessionCredentials

Thu, 02 Jul 2026 09:15:00 +0000

Type	Values Removed	Values Added
Title		Same-Origin Policy Bypass via Untrusted Input in DeviceBoundSessionCredentials

Thu, 02 Jul 2026 05:00:00 +0000

Type	Values Removed	Values Added
Title	DeviceBoundSessionCredentials Input Validation Flaw Allows Same-Origin Policy Bypass in Google Chrome

Wed, 01 Jul 2026 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Title		DeviceBoundSessionCredentials Input Validation Flaw Allows Same-Origin Policy Bypass in Google Chrome

Wed, 01 Jul 2026 11:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Google Google chrome
Vendors & Products		Google Google chrome

Wed, 01 Jul 2026 10:45:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation of DeviceBoundSessionCredentials Enables Same‑Origin Policy Bypass via Crafted HTML

Wed, 01 Jul 2026 03:15:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation of DeviceBoundSessionCredentials Enables Same‑Origin Policy Bypass via Crafted HTML

Tue, 30 Jun 2026 23:15:00 +0000

Type	Values Removed	Values Added
Description		Insufficient validation of untrusted input in DeviceBoundSessionCredentials in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses		CWE-20
References		https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html https://issues.chromium.org/issues/511738175

Subscriptions

Google Chrome

MITRE

Status: PUBLISHED

Assigner: Chrome

Published: 2026-06-30T22:38:22.182Z

Updated: 2026-07-01T19:01:59.964Z

Reserved: 2026-06-29T23:03:52.606Z

Link: CVE-2026-13921

Vulnrichment

Updated: 2026-07-01T17:40:10.859Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-07-16T12:30:03Z

Weaknesses

CWE-20
Improper Input Validation

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction Required

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

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