Jodit has prototype pollution via Jodit.configure() / ConfigMerge — GHSA-5957-5C94-3V7W

Summary

### Summary `Jodit.configure(options)` — and the internal `ConfigMerge` / `ConfigProto` helpers — merged user-supplied options into the editor configuration without filtering prototype-mutating keys. A payload nested under an existing plain-object option such as `controls` could reach and mutate `Object.prototype` (prototype pollution). ### Affected - Package: `jodit` (npm) - Versions: `< 4.12.18` - Public API:…

Timeline

Published by source

2026-07-31

Risk context

• Reported severity or threat level: medium.
• Review exposure for the affected product or family: npm: jodit.

Product

npm: jodit

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

GHSA-5957-5C94-3V7W

Source

GitHub

Vendor

GitHub

Published by source

2026-07-31

Last source activity

2026-07-31

Additional identifiers

CVE-2026-54756

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.