CVE-2026-6608 — Lm-Sys Fastchat Vulnerability
CVE-2026-6608 — A vulnerability was detected in lm-sys fastchat up to 0.2.36. Impacted is the function add_text of the component Arena Side-by-Side View Handler. The manipulation results in incorrect control flow. The attack can be launched remotely. The exploit is now public and may be used. The ro
What This Means For You
- If your environment is affected by CWE-670, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-6608 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-6608 - Lm-Sys Fastchat Arena Side-by-Side View Handler Vulnerability
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-6608 | vulnerability | CVE-2026-6608 |
| CWE-670 | weakness | CWE-670 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 20, 2026 at 09:16 UTC |
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