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Fencer Intel
medium 6.5

CVE-2026-106266 json

Confused deputy in Contextual Tasks in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer proc…

published last mo. modified 27d ago also EUVD-2026-93685

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits
0
none known

Summary

Confused deputy in Contextual Tasks in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

Patch / fix

  • google chrome 155.0.8059.39
  • chromium Debian 12 155.0.8059.39-1~deb12u1
  • chromium Debian 13 155.0.8059.39-1~deb13u1
  • chromium Debian 14 155.0.8059.39-1

debian advisories DEBIAN-CVE-2026-106266

  • chromium openSUSE Leap 16.0 155.0.8059.84-bp160.1.1
  • chromium openSUSE Tumbleweed 155.0.8059.39-1.1

opensuse advisories openSUSE-SU-2026:22124-1openSUSE-SU-2026:12091-1

Is CVE-2026-106266 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-2026-106266 updated cvss 6.5

chromium-browser: Confused deputy in Contextual Tasks

  • 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
last mo.

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-09).

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:N/I:H/A:N
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-441 Unintended Proxy or Intermediary
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.