VulnerabilityPublished 11 Mar 2026Updated 13 Mar 2026

CVE-2026-3936: Google Chrome · Use After Free

Affects Google ChromeSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High : upgrade to 146.0.7680.71 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score

8.8High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 146.0.7680.71

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Google Chrome to 146.0.7680.71.

Affected software

Product	Affected	Fixed in
GoogleChrome	Affected >=146.0.7680.71 <146.0.7680.71	Fixed in 146.0.7680.71

AI-suggested

Immediate update: Organizations and users should update Google Chrome on Android devices to version 146.0.7680.71 or later as soon as possible to apply the patch fixing this vulnerability.
Application whitelisting: Limit the use of WebView-based applications to trusted sources and restrict installation of unverified apps that might expose WebView to malicious content.
Network controls: Implement web filtering and URL reputation services to block access to known malicious or suspicious websites that could host exploit pages.
User awareness: Educate users about the risks of clicking unknown links or visiting untrusted websites, especially on mobile devices.
Monitor logs: Enable and monitor security logs for unusual WebView activity or crashes that could indicate exploitation attempts.
Employ sandboxing: Use Android security features and app sandboxing to limit the impact of any successful exploitation.
Incident response readiness: Prepare to respond quickly to any signs of compromise related to WebView or Chrome on Android devices, including isolating affected devices and performing forensic analysis.
Vendor communication: Stay updated with Google’s security advisories for any additional patches or mitigations related to this vulnerability.

Description

CVE-2026-3936 is a high-severity use-after-free vulnerability in the WebView component of Google Chrome on Android versions prior to 146.0.7680.71. This flaw allows a remote attacker to exploit heap corruption by crafting a malicious HTML page, potentially leading to full compromise of confidentiality, integrity, and availability. Exploitation requires user interaction, such as visiting a malicious webpage, but no privileges or prior authentication are needed. Although no known exploits are currently reported in the wild, the vulnerability's high CVSS score of 8.8 reflects its critical impact. Organizations relying on Android devices with vulnerable Chrome versions are at risk of remote code execution and data breaches. Immediate patching to version 146.

Impact

The impact of CVE-2026-3936 is substantial for organizations and individuals using Android devices with vulnerable Chrome WebView versions. Successful exploitation can lead to remote code execution, allowing attackers to gain control over the affected device. This can result in data theft, installation of persistent malware, espionage, or disruption of services. The compromise of confidentiality, integrity, and availability can affect sensitive corporate data, user credentials, and critical applications relying on WebView for rendering content. Enterprises with mobile workforces or BYOD policies are particularly at risk, as attackers can target employees through phishing or malicious websites. The widespread use of Android globally means a large attack surface, and the requirement for only user interaction (visiting a malicious page) lowers the barrier for exploitation. Although no known exploits are currently in the wild, the high severity and ease of exploitation make this a critical vulnerability to address promptly to prevent potential future attacks.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 20 Mar 2026, 02:50 UTC

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