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Fencer Vulns
low 2.1

CVE-2026-118256 json

Vue I18n: `escapeParameter` does not escape named values when the same call also passes a list

published 2026-10-28 11 d ago modified 2026-10-30 9 d ago also GHSA-8rc2-428q-7ww3 , EUVD-2026-112358

cvss
2.1
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

Vue I18n is the internationalization plugin for Vue.js. From 9.0.0-beta.5 until 11.4.14 and 12.0.0-alpha.5, enabling escapeParameter, called escapeParameterHtml in the Legacy API, does not escape named interpolation values when the same translation call supplies both list and named values because escapeParams() processes only the list branch. Applications that render translations as HTML and pass untrusted named values with a list can insert attacker-controlled markup, including phishing links, forms, and layout changes, and can permit script execution when combined with the srcdoc sanitizer bypass or on releases without the sanitizer. This issue is fixed in versions 11.4.14 and 12.0.0-alpha.5.

Patch / fix

  • npm vue-i18n 11.4.14, 12.0.0-alpha.5
  • npm @intlify/core 11.4.14, 12.0.0-alpha.5
  • npm @intlify/core-base 11.4.14, 12.0.0-alpha.5
  • npm petite-vue-i18n 11.4.14, 12.0.0-alpha.5
  • npm @intlify/vue-i18n-core 11.4.14, 12.0.0-alpha.5

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-2026-118256 updated cvss 4.7

vue-i18n: vue-i18n: HTML injection via unescaped named interpolation parameters

  • Red Hat OpenShift API for Data Protection oadp/oadp-vmfr-access-filebrowser-rhel9
    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
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
9 d ago

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/intlify/vue-i18n/security/advisories/GHSA-8rc2-428q-7ww3 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
CNA 4.0 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
npm vue-i18n
>=9.0.0-beta.5, <11.4.14
>=12.0.0-alpha.1, <12.0.0-alpha.5
11.4.14
12.0.0-alpha.5
npm @intlify/core
>=9.0.0-beta.10, <11.4.14
>=12.0.0-alpha.1, <12.0.0-alpha.5
11.4.14
12.0.0-alpha.5
npm @intlify/core-base
>=9.0.0-beta.12, <11.4.14
>=12.0.0-alpha.1, <12.0.0-alpha.5
11.4.14
12.0.0-alpha.5
npm petite-vue-i18n
>=9.2.0-alpha.7, <11.4.14
>=12.0.0-alpha.1, <12.0.0-alpha.5
11.4.14
12.0.0-alpha.5
npm @intlify/vue-i18n-core
>=9.2.0-alpha.7, <11.4.14
>=12.0.0-alpha.1, <12.0.0-alpha.5
11.4.14
12.0.0-alpha.5

Affected products

  • intlify vue-i18n

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
  • CWE-116 Improper Encoding or Escaping of Output

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.