CVE-2026-13856 - Vulnerability Details

Description

Insufficient validation of untrusted input in Speech in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)

Published: 2026-06-30

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

Insufficient validation of Speech feature on Android allows a remote attacker, who has already compromised the renderer process, to perform privilege escalation within the Android sandbox. The flaw is a classic input validation weakness reflected in CWE‑20, enabling the attacker to elevate privileges and potentially execute arbitrary code in a higher‑privileged context.

Affected Systems

Google Chrome on Android versions earlier than 150.0.7871.47 are affected; other Chrome components are not directly vulnerable.

Risk and Exploitability

Chromium rates this issue as medium severity, but the CVSS score a high level of impact. The EPSS score indicates a very low exploitation probability, and the vulnerability is not listed in KEV. The likely attack vector is first achieve code execution in the renderer process, which typically requires a prior successful exploit, making the overall risk moderate for users of affected Chrome versions.

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

Update Google Chrome to version 150.0.7871.47 or later to receive the fix for the Speech input validation flaw.
If updating is not immediately possible, disable the Web Speech (Speech) feature in Chrome by blocking the Web Speech API in site settings or using a policy that turns WebSpeechEnabled off, preventing untrusted input from being processed.
Implement a browser‑side policy to restrict renderer processes from accessing the Speech API until the vulnerability is patched, thereby reducing the risk of the initial compromise that would lead to privilege escalation.

Generated by OpenCVE AI on July 15, 2026 at 11:05 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 High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00277.

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html
https://issues.chromium.org/issues/508092634

History

Wed, 15 Jul 2026 11:30:00 +0000

Type	Values Removed	Values Added
Title		Privilege Escalation via Speech API Input Validation in Android Chrome

Mon, 13 Jul 2026 16:45:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation in Chrome Speech Feature Enables Privilege Escalation on Android

Sun, 12 Jul 2026 11:15:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation in Chrome Speech Feature Enables Privilege Escalation on Android

Sat, 11 Jul 2026 17:30:00 +0000

Type	Values Removed	Values Added
Title	Input Validation Flaw in Chrome Speech API on Android Enables Privilege Escalation

Fri, 10 Jul 2026 18:45:00 +0000

Type	Values Removed	Values Added
Title		Input Validation Flaw in Chrome Speech API on Android Enables Privilege Escalation

Fri, 10 Jul 2026 04:30:00 +0000

Type	Values Removed	Values Added
Title	Speech Feature Input Validation Flaw Enables Privilege Escalation in Chrome on Android

Thu, 09 Jul 2026 08:30:00 +0000

Type	Values Removed	Values Added
Title		Speech Feature Input Validation Flaw Enables Privilege Escalation in Chrome on Android

Wed, 08 Jul 2026 20:15:00 +0000

Type	Values Removed	Values Added
Title	Chrome Android Speech Privilege Escalation via Input Validation

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

Type	Values Removed	Values Added
Title		Chrome Android Speech Privilege Escalation via Input Validation

Mon, 06 Jul 2026 12:45:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation in Chrome's Speech Feature Allows Privilege Escalation

Sun, 05 Jul 2026 23:30:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation in Chrome's Speech Feature Allows Privilege Escalation

Sun, 05 Jul 2026 15:15:00 +0000

Type	Values Removed	Values Added
Title	Android Chrome Speech Feature Privilege Escalation via Untrusted Input

Sun, 05 Jul 2026 07:30:00 +0000

Type	Values Removed	Values Added
Title		Android Chrome Speech Feature Privilege Escalation via Untrusted Input

Sat, 04 Jul 2026 20:15:00 +0000

Type	Values Removed	Values Added
Title	Input Validation Flaw in Chrome Android Speech Enables Privilege Escalation

Sat, 04 Jul 2026 08:15:00 +0000

Type	Values Removed	Values Added
Title		Input Validation Flaw in Chrome Android Speech Enables Privilege Escalation

Fri, 03 Jul 2026 13:00:00 +0000

Type	Values Removed	Values Added
Title	Untrusted Input Validation in Chrome Speech Feature Enables Privilege Escalation

Fri, 03 Jul 2026 06:00:00 +0000

Type	Values Removed	Values Added
Title		Untrusted Input Validation in Chrome Speech Feature Enables Privilege Escalation

Thu, 02 Jul 2026 20:15:00 +0000

Type	Values Removed	Values Added
Title	Insufficient Validation in Chrome Speech Enables Privilege Escalation on Android

Thu, 02 Jul 2026 12:00:00 +0000

Type	Values Removed	Values Added
Title		Insufficient Validation in Chrome Speech Enables Privilege Escalation on Android

Thu, 02 Jul 2026 07:00:00 +0000

Type	Values Removed	Values Added
Title	Speech Input Validation Flaw Enabling Privilege Escalation in Chrome for Android

Thu, 02 Jul 2026 02:30:00 +0000

Type	Values Removed	Values Added
Title		Speech Input Validation Flaw Enabling Privilege Escalation in Chrome for Android

Wed, 01 Jul 2026 21:00:00 +0000

Type	Values Removed	Values Added
Title	Unvalidated Speech Input Enables Privilege Escalation in Chrome Android

Wed, 01 Jul 2026 14:45:00 +0000

Type	Values Removed	Values Added
Title		Unvalidated Speech Input Enables Privilege Escalation in Chrome Android

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

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 11:30:00 +0000

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

Wed, 01 Jul 2026 08:30:00 +0000

Type	Values Removed	Values Added
Title	Privilege Escalation via Untrusted Input in Chrome Speech Engine on Android

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

Type	Values Removed	Values Added
Title		Privilege Escalation via Untrusted Input in Chrome Speech Engine on Android

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

Type	Values Removed	Values Added
Description		Insufficient validation of untrusted input in Speech in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to perform privilege escalation 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/508092634

Subscriptions

Google Chrome

MITRE

Status: PUBLISHED

Assigner: Chrome

Published: 2026-06-30T22:37:58.377Z

Updated: 2026-07-02T03:55:30.769Z

Reserved: 2026-06-29T23:03:34.886Z

Link: CVE-2026-13856

Vulnrichment

Updated: 2026-07-01T13:19:36.285Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-07-15T11:15:16Z

Weaknesses

CWE-20
Improper Input Validation

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

Exploitation none

Automatable no

Technical Impact total

Subscriptions

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