medium6.3
CVE-2026-28509
LangBot is a global IM bot platform designed for LLMs.
Impact
LangBot is a global IM bot platform designed for LLMs. Prior to version 4.8.7, LangBot’s web UI renders user-supplied raw HTML using rehypeRaw, which can lead to a cross-site scripting (XSS) vulnerability. This issue has been patched in version 4.8.7.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Langbot | Langbot | before 4.8.7 |