CVE-2026-11258

chromium-browser: Inappropriate implementation in File System Access

Published Jun 4, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Description

Inappropriate implementation in File System Access in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to bypass discretionary access control via a crafted HTML page. (Chromium security severity: Low)

Analysis

Technical impact

In Google Chrome versions prior to 149.0.7827.53 an inappropriate implementation of File System Access handling allows a remote attacker who lures a user into performing specific UI gestures on a crafted web page to bypass discretionary access controls, effectively obtaining elevated file system permissions beyond those normally granted to the user. The flaw is associated with CWE-284 and CWE-551.

Affected Systems

The vulnerability affects any platform where an unpatched Google Chrome installation is running. Users of Chrome before updating to 149.0.7827.53 are at risk; no other vendors or products are directly impacted.

Risk and Exploitability

The attacker must first persuade the victim to interact with the malicious page, so the attack vector is user-dependent and somewhat limited in scale. The EPSS score is below 1% and the CVSS score of 6.5 indicates moderate severity. The flaw is not currently listed in CISA’s KEV catalog. Nonetheless, because it can lead to privilege escalation, it warrants prompt patching by all affected users.

Affected Products

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
`149.0.7827.53`	affected	< 149.0.7827.53

Configuration 1 [-]

AND

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:linux:linux_kernel:-:::::::*
	cpe:2.3:o:microsoft:windows:-:::::::*

No data.

Vendor Product Versions

Google

Chrome

Version	Status	Scheme	Platform
`[0,149.0.7827.53)`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Apply the Chrome update 149.0.7827.53 or later to address the file system access flaw identified as CWE-284 and CWE-551.
Disable File System Access permissions for untrusted sites, reducing the risk of arbitrary access (CWE-284).
Enable automatic updates to ensure similar access control defects are promptly patched in the future.

Generated by OpenCVE AI on June 7, 2026 at 16:25 UTC.

Tracking

Advisories

Source	ID	Title
Debian DSA	DSA-6325-1	chromium security update

Metrics

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.

Exploit prediction score: < 1% (0.201% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html
https://issues.chromium.org/issues/499078161
https://nvd.nist.gov/vuln/detail/CVE-2026-11258
https://www.cve.org/CVERecord?id=CVE-2026-11258

History

Jun 8, 2026 2:30 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Apple Apple macos Linux Linux linux Kernel Microsoft Microsoft windows
CPEs		cpe:2.3:a:google:chrome:::::::: cpe:2.3:o:apple:macos:-:::::::* cpe:2.3:o:linux:linux_kernel:-:::::::* cpe:2.3:o:microsoft:windows:-:::::::*
Vendors & Products		Apple Apple macos Linux Linux linux Kernel Microsoft Microsoft windows

Jun 7, 2026 12:15 PM Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Title	Chrome File System Access Discretionary Control Bypass via UI Gestures	chromium-browser: Inappropriate implementation in File System Access
Weaknesses		CWE-551
References		https://nvd.nist.gov/vuln/detail/CVE-2026-11258 https://www.cve.org/CVERecord?id=CVE-2026-11258
Metrics	threat_severity `None`	threat_severity `Low`

Jun 6, 2026 12:30 AM Title updated View changes

Type	Values Removed	Values Added
Title		Chrome File System Access Discretionary Control Bypass via UI Gestures

Jun 5, 2026 11:15 PM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title	Chrome File System Access Bypass via Crafted Page
Weaknesses	CWE-285

Jun 5, 2026 8:30 PM Scoring metrics updated View changes

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'}`

Jun 5, 2026 3:30 AM First appearance in the feed. Affected vendors updated View changes

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

Jun 5, 2026 1:15 AM Title updated. Weaknesses updated View changes

Type	Values Removed	Values Added
Title		Chrome File System Access Bypass via Crafted Page
Weaknesses		CWE-284 CWE-285

Jun 4, 2026 11:45 PM Description updated. Added references View changes

Type	Values Removed	Values Added
Description		Inappropriate implementation in File System Access in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to bypass discretionary access control via a crafted HTML page. (Chromium security severity: Low)
References		https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html https://issues.chromium.org/issues/499078161