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Fencer Vulns
medium 6.5

CVE-2026-1504 json

Inappropriate implementation in Background Fetch API in Google Chrome prior to 144.0.7559.110 allowed a remote attacker to leak cross-origi…

published 2026-01-27 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-4737

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits
0
none known

Summary

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)

Patch / fix

  • google chrome 144.0.7559.110
  • chromium Debian 12 144.0.7559.109-1~deb12u1
  • chromium Debian 13 144.0.7559.109-1~deb13u1
  • chromium Debian 14 144.0.7559.109-1

debian advisories DEBIAN-CVE-2026-1504

  • chromium openSUSE Leap 16.0 144.0.7559.132-bp160.1.1
  • chromium openSUSE Tumbleweed 144.0.7559.109-1.1

opensuse advisories openSUSE-SU-2026:20183-1openSUSE-SU-2026:10121-1

  • qt6-qtwebengine Alpine 3.23 6.10.1-r4
  • qt6-qtwebengine Alpine 3.24 6.10.2-r1

alpine advisories ALPINE-CVE-2026-1504

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-1504 updated cvss 6.5

chromium-browser: Inappropriate implementation in Background Fetch API

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

  • Google Chrome

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.