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Fencer Intel
medium 6.5

CVE-2026-5876 json

Side-channel information leakage in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to leak cross-origin data…

published 7mo ago modified 3mo ago also EUVD-2026-20682

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

Side-channel information leakage in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Patch / fix

  • google chrome 147.0.7727.55
  • chromium Debian 12 147.0.7727.55-1~deb12u1
  • chromium Debian 13 147.0.7727.55-1~deb13u1
  • chromium Debian 14 147.0.7727.55-1

debian advisories DEBIAN-CVE-2026-5876

  • chromium openSUSE Leap 16.0 147.0.7727.137-bp160.1.1
  • chromium openSUSE Tumbleweed 147.0.7727.55-1.1

opensuse advisories openSUSE-SU-2026:20660-1openSUSE-SU-2026:10530-1

  • qt6-qtwebengine Alpine 3.23 6.10.3-r1
  • qt6-qtwebengine Alpine 3.24 6.11.0-r3

alpine advisories ALPINE-CVE-2026-5876

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

Is CVE-2026-5876 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2026-5876 updated cvss 7.4

chromium-browser: Side-channel information leakage in Navigation

  • 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
7mo ago

Exploit prediction

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

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

Weakness
  • CWE-1300 Improper Protection of Physical Side Channels
Technology feeds

References

Sources

Fencer Intel 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.