CVE-2026-118129
A vulnerability was found in jeremyckahn Chitchatter up to f82538633813c854a81a8b2112a2f6ba17b39cbc
- Risk score
- 43/100
- CVSS
- 6.3 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 28 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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. R…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.3 medium
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
Original 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.
Last activity 28 Oct 2026. Patch Forecast updates every hour.