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CVE-2026-6608

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/20/2026

Last Modified4/22/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-670

References

https://gist.github.com/YLChen-007/e45039d23e698222d887ee09735d9d36(cna@vuldb.com)

https://github.com/lm-sys/FastChat/(cna@vuldb.com)

https://github.com/lm-sys/FastChat/issues/3834(cna@vuldb.com)

https://vuldb.com/submit/792228(cna@vuldb.com)

https://vuldb.com/vuln/358243(cna@vuldb.com)

https://vuldb.com/vuln/358243/cti(cna@vuldb.com)

IOC Correlations

No correlations recorded

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