Vue I18n Allows Prototype Pollution in `handleFlatJson`

Description

Vulnerability type: Prototype Pollution

Vulnerability Location(s):

Description:

The latest version of @intlify/message-resolver (9.1) and @intlify/vue-i18n-core (9.2 or later), (previous versions might also affected), is vulnerable to Prototype Pollution through the entry function(s) handleFlatJson.

Recommendation

Update the petite-vue-i18n package to the latest compatible version. Followings are version details:

• Affected version(s): **>= 11.0.0-beta.0, < 11.1.2

  >= 10.0.0, < 10.0.6**

• Patched version(s): **11.1.2

  10.0.6**

References

• GHSA-p2ph-7g93-hw3m
• CVE-2025-27597
• CWE-1321
• CAPEC-310
• OWASP 2021-A6

Related Issues

• cors-anywhere vulnerable to server-side request forgery - CVE-2020-36851
• vue-i18n's escapeParameterHtml does not prevent DOM-based XSS through its tag attributes - CVE-2025-53892
• Valid ECDSA signatures erroneously rejected in Elliptic - CVE-2024-48948
• Trix vulnerable to Cross-site Scripting on copy & paste - CVE-2025-46812

Tags:

npm

petite-vue-i18n