CVE-2026-5892

Silent PWA installation via policy enforcement failure

Published Apr 8, 2026 · Updated Apr 8, 2026

Policy enforcement failure in PWAs in Google Chrome before 147.0.7727.55 allows remote attackers to install a PWA without consent. Google has not disclosed the specific PWA policy check or code path that accepts the crafted HTML page, and the linked Chromium issue remains restricted. Exploitation requires an already-compromised renderer process and results in silent PWA installation rather than reported data disclosure.

CVSS severity6.6
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Policy enforcement failure in PWAs in Google Chrome before 147.0.7727.55 allows remote attackers to install a PWA without consent. Google has not disclosed the specific PWA policy check or code path that accepts the crafted HTML page, and the linked Chromium issue remains restricted. Exploitation requires an already-compromised renderer process and results in silent PWA installation rather than reported data disclosure.

The record

CVE
CVE-2026-5892
Published
Apr 8, 2026
Updated
Apr 8, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-1268
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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=147.0.7727.55 <147.0.7727.55

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Go standard library · Google Chromeversion=147.0.7727.55 <147.0.7727.55

Published CVSS scores

6.6CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1268Policy Privileges are not Assigned Consistently Between Control and Data Agents

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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