CVE-2026-118129
6.3 MEDIUMpublic exploit availablePublished 2026-10-28 · Updated 2026-10-28
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Weaknesses
CWE-287
Public exploit & PoC references
All references
- https://github.com/0xGenesi/CVE/blob/main/Chitchatter_SDK_postMessage_Identity_Key_Injection.md
- https://github.com/jeremyckahn/chitchatter/
- https://github.com/jeremyckahn/chitchatter/commit/e3babb5cd83bfe3b99f1d82358ac5c1ea8e8a688
- https://github.com/jeremyckahn/chitchatter/pull/635
- https://vuldb.com/cve/CVE-2026-118129
- https://vuldb.com/submit/1015027
- https://vuldb.com/vuln/427456
- https://vuldb.com/vuln/427456/cti
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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