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Fencer Vulns
medium 6.1

CVE-2026-12459 json

Inappropriate implementation in Serial in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to inject arbitrary scripts or HT…

published 2026-06-17 4 mo ago modified 2026-10-26 14 d ago also EUVD-2026-37544

cvss
6.1
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 7%
public exploits
0
none known

Summary

Inappropriate implementation in Serial in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: High)

Patch / fix

  • google chrome 149.0.7827.155
  • chromium Debian 12 149.0.7827.155-1~deb12u1
  • chromium Debian 13 149.0.7827.155-1~deb13u1
  • chromium Debian 14 149.0.7827.155-1

debian advisories DEBIAN-CVE-2026-12459

  • chromium openSUSE Leap 16.0 149.0.7827.155-bp160.1.1
  • chromium openSUSE Tumbleweed 149.0.7827.155-1.1

opensuse advisories openSUSE-SU-2026:21135-1openSUSE-SU-2026:11071-1

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-2026-12459 updated cvss 8.1

chromium-browser: chromium-browser: Inappropriate implementation in Serial

  • 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
4 mo ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
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.