Unrated severityNVD Advisory· Published Sep 3, 2025· Updated Sep 8, 2025

CVE-2025-26210

Description

DeepSeek R1 through V3.1 allows XSS, as demonstrated by JavaScript execution in the context of the run-html-chat.deepseeksvc.com domain. NOTE: some third parties have indicated that this is intended behavior.

Affected products

DeepSeek/DeepSeek R1description
DeepSeek/DeepSeekllm-create
Range: R1 - V3.1

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

deepseek.commitre
hackmd.io/@MrqrFIlhQFi7vUwkqbrXDw/deepseekmitre
youtu.be/IgQwy52FVT4mitre

News mentions

No linked articles in our index yet.

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