CVE-2026-11153

chromium-browser: Side-channel information leakage in Forms

Published Jun 4, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Description

Side-channel information leakage in Forms in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Analysis

Technical impact

The vulnerability is a side‑channel information leakage flaw in the Chrome Forms component. By loading a specially crafted HTML page, a remote attacker can cause Chrome to expose data that belongs to a different origin, effectively leaking confidential information from a user’s session. This is a CWE‑1300 and CWE‑205 type weakness and constitutes a data‑exposure risk.

Affected Systems

Google Chrome users with versions earlier than 149.0.7827.53 are affected. The flaw exists in the stable channel of the browser and any instance that has not received the latest security update is vulnerable.

Risk and Exploitability

The vulnerability is not listed in CISA’s KEV catalog and its EPSS score is less than 1%, indicating low current exploitation probability. The attack requires a user to visit a malicious webpage that triggers the side‑channel; once the page is rendered, cross‑origin data can be read. The CVSS score of 9.1 indicates high severity, and the potential impact could be substantial if sensitive data is exposed. No public exploit code is currently known.

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
`[149.0.7827.53,149.0.7827.53)`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Update Google Chrome to version 149.0.7827.53 or later via the official update channel.
Deploy the update to all managed devices using your enterprise update management tooling to minimize the window of exposure.
Continuously monitor Chrome release notes and security advisories to stay current on future mitigations and patches.

Generated by OpenCVE AI on June 7, 2026 at 14:58 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 High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.264% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html
https://issues.chromium.org/issues/501779840
https://nvd.nist.gov/vuln/detail/CVE-2026-11153
https://www.cve.org/CVERecord?id=CVE-2026-11153

History

Jun 8, 2026 3:00 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		chromium-browser: Side-channel information leakage in Forms
Weaknesses		CWE-205
References		https://nvd.nist.gov/vuln/detail/CVE-2026-11153 https://www.cve.org/CVERecord?id=CVE-2026-11153
Metrics	threat_severity `None`	threat_severity `Moderate`

Jun 5, 2026 8:15 PM Title updated View changes

Type	Values Removed	Values Added
Title	Cross‑Origin Form Data Leakage via Crafted HTML Page in Chrome

Jun 5, 2026 6:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Jun 5, 2026 5:15 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 4:15 AM Title updated View changes

Type	Values Removed	Values Added
Title		Cross‑Origin Form Data Leakage via Crafted HTML Page in Chrome

Jun 4, 2026 11:15 PM Description updated. Weaknesses updated. Added references View changes

Type	Values Removed	Values Added
Description		Side-channel information leakage in Forms in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses		CWE-1300
References		https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html https://issues.chromium.org/issues/501779840