Is CVE-2026-6608 actively exploited?

No active exploitation of CVE-2026-6608 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6608 be exploited remotely?

Yes. CVE-2026-6608 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6608?

CVE-2026-6608 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-6608

CWE-670Published: April 20, 2026· Updated: Apr 22, 2026

5.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:10.2th

Official Description

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 root cause was fixed in commit 34eca62 for gradio_block_arena_named.py, but three other files were missed.

NVD Source

Technical Analysis

CVE-2026-6608 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.