CVE-2026-118129

MediumCVSS 6.3/10Last modified Nov 2, 2026

Description

A vulnerability was found in jeremyckahn Chitchatter up to f82538633813c854a81a8b2112a2f6ba17b39cbc. The affected element is the function isConfigMessageEvent of the file src/Bootstrap.tsx of the component PostMessage Handler. Performing a manipulation of the argument parentDomain results in improper authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The patch is named e3babb5cd83bfe3b99f1d82358ac5c1ea8e8a688. It is recommended to apply a patch to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Metrics

CVSS 3.1 6.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
jeremyckahn	Chitchatter	f82538633813c854a81a8b2112a2f6ba17b39cbc

References

Timeline

Published: Oct 28, 2026
Last modified: Nov 2, 2026
NVD status: Deferred

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