CVE-2022-4186Network attack vector

Download restriction bypass via unvalidated HTML

Published Nov 29, 2022 · Updated Aug 3, 2024

Improper input validation in Google Chrome Downloads before 108.0.5359.71 allows attackers to bypass download restrictions via crafted HTML. Google identifies the Downloads component but has not published the validation logic or untrusted value that the component accepts incorrectly. Exploitation requires convincing a user to install a malicious extension and then open attacker-controlled HTML, allowing downloads that Chrome would otherwise restrict.

CVSS severity4.3
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Google Chrome Downloads before 108.0.5359.71 allows attackers to bypass download restrictions via crafted HTML. Google identifies the Downloads component but has not published the validation logic or untrusted value that the component accepts incorrectly. Exploitation requires convincing a user to install a malicious extension and then open attacker-controlled HTML, allowing downloads that Chrome would otherwise restrict.

The record

CVE
CVE-2022-4186
Published
Nov 29, 2022
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-20, T1176.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <108.0.5359.71

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=unspecified <108.0.5359.71

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1176.001Browser Extensions

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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