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6.5
MEDIUM CVSS 3.1
CVE-2026-1504
Google Chrome Background Fetch API Cross-Origin Data Leak Vulnerability
Description

Inappropriate implementation in Background Fetch API in Google Chrome prior to 144.0.7559.110 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

INFO

Published Date :

Jan. 27, 2026, 9:16 p.m.

Last Modified :

Feb. 6, 2026, 5:45 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2026-1504 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Google chrome
1 Microsoft edge_chromium
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update Google Chrome to version 144.0.7559.110 or later to fix a data leak vulnerability.
  • Update Google Chrome to the latest version.
  • Apply the security patch for version 144.0.7559.110.
  • Avoid opening untrusted HTML pages.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-1504.

URL Resource
https://chromereleases.googleblog.com/2026/01/stable-channel-update-for-desktop_27.html Release Notes
https://issues.chromium.org/issues/474435504 Permissions Required
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-1504 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-1504 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-1504 vulnerability anywhere in the article.

  • CybersecurityNews
Chrome Security Update Patches Background Fetch API Vulnerability

Chrome versions 144.0.7559.109 and 144.0.7559.110 have been released to the stable channel, addressing a critical security vulnerability in the Background Fetch API. The update is rolling out across W ... Read more

Published Date: Jan 28, 2026 (2 weeks, 5 days ago)
  • Daily CyberSecurity
Under Attack: Critical Fortinet Auth Bypass (CVE-2026-24858) Exploited in the Wild

Fortinet has issued an urgent warning regarding a critical vulnerability affecting its core network security platforms, including FortiOS, FortiManager, and FortiAnalyzer. The flaw, tracked as CVE-202 ... Read more

Published Date: Jan 28, 2026 (2 weeks, 6 days ago)
  • Daily CyberSecurity
Chrome Patches High-Severity Background Fetch Flaw (CVE-2026-1504)

Google has rolled out an important update for the Chrome Stable channel, pushing version 144.0.7559.109/110 to Windows and Mac users (and 144.0.7559.109 for Linux) to address a single, high-severity s ... Read more

Published Date: Jan 28, 2026 (2 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-1504 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Feb. 06, 2026

    Action Type Old Value New Value
    Added CWE NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* versions up to (excluding) 144.0.7559.110
    Added Reference Type Chrome: https://chromereleases.googleblog.com/2026/01/stable-channel-update-for-desktop_27.html Types: Release Notes
    Added Reference Type Chrome: https://issues.chromium.org/issues/474435504 Types: Permissions Required
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jan. 27, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
  • New CVE Received by [email protected]

    Jan. 27, 2026

    Action Type Old Value New Value
    Added Description Inappropriate implementation in Background Fetch API in Google Chrome prior to 144.0.7559.110 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
    Added Reference https://chromereleases.googleblog.com/2026/01/stable-channel-update-for-desktop_27.html
    Added Reference https://issues.chromium.org/issues/474435504
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact