Vue I18n is the internationalization plugin for Vue.js. From 11.1.10 until 11.4.14 and from 12.0.0-alpha.4 until 12.0.0-alpha.5, sanitizeTranslatedHtml() escapes markup and event-handler text inside an iframe srcdoc value but leaves the srcdoc attribute active. Browsers decode the character references and parse the value as a same-origin nested HTML document, allowing attacker-controlled parameters or translation content placed in srcdoc to execute script when applications enable escapeParameter and render translations as HTML through v-html. Versions 9.14.5 and 10.0.8 are also affected and are no longer supported, while i18n-t rendering is not affected. This issue is fixed in versions 11.4.14 and 12.0.0-alpha.5.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
intlify vue-i18n affected
Version Status Constraints
= 9.14.5 affected —
= 10.0.8 affected —
>= 11.1.10, < 11.4.14 affected —
>= 12.0.0-alpha.4, < 12.0.0-alpha.5 affected —

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Project Subscriptions

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Advisories

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Fixes

Solution

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Workaround

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References
Link Providers
https://github.com/intlify/vue-i18n/commit/43391d20e7c85403cb59bdb21b5d542819f54042 cve-icon
https://github.com/intlify/vue-i18n/pull/2679 cve-icon
https://github.com/intlify/vue-i18n/releases/tag/v11.4.14 cve-icon
https://github.com/intlify/vue-i18n/releases/tag/v12.0.0-alpha.5 cve-icon
https://github.com/intlify/vue-i18n/security/advisories/GHSA-83rm-6c8r-g728 cve-icon
History

Wed, 28 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Description Vue I18n is the internationalization plugin for Vue.js. From 11.1.10 until 11.4.14 and from 12.0.0-alpha.4 until 12.0.0-alpha.5, sanitizeTranslatedHtml() escapes markup and event-handler text inside an iframe srcdoc value but leaves the srcdoc attribute active. Browsers decode the character references and parse the value as a same-origin nested HTML document, allowing attacker-controlled parameters or translation content placed in srcdoc to execute script when applications enable escapeParameter and render translations as HTML through v-html. Versions 9.14.5 and 10.0.8 are also affected and are no longer supported, while i18n-t rendering is not affected. This issue is fixed in versions 11.4.14 and 12.0.0-alpha.5.
Title Vue I18n: escapeParameter does not prevent XSS through srcdoc in translation messages
Weaknesses CWE-116
CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-28T18:23:49.400Z

Reserved: 2026-10-27T20:13:55.314Z

Link: CVE-2026-118257

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses