Checked fact 327331 Oct 2026Safety and security

Cursor's security notice was published on 29 October 2026 by the Cursor Team and updated on 30 October 2026 at 11:30am PT to update the indicators and clarify affected versions.

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The exact words it rests on

Oct 30, 2026, 11:30 am PT: We updated the IOCs and clarified affected versions.

What the source said when we opened it, on 31 Oct 2026.

The source

Security notice: malicious Anthropic.claude-code versions in the Cursor VS Code Extension Marketplace
Cursor · 2026-10-29

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Checked

Checked by the notis newsroom on 31 Oct 2026, against the source above.

In the story

Cursor says Claude Code 2.1.312 and 2.1.313 on its marketplace were malicious and attempted to add an SSH key. 31 Oct 2026

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In a sentence

“Cursor's security notice was published on 29 October 2026 by the Cursor Team and updated on 30 October 2026 at 11:30am PT to update the indicators and clarify affected versions.” ai notis, checked 31 Oct 2026. Source: Security notice: malicious Anthropic.claude-code versions in the Cursor VS Code Extension Marketplace (Cursor). https://ainotis.com/c/3273

As a reference (APA style)

ai notis. (2026, October 31). Cursor's security notice was published on 29 October 2026 by the Cursor Team and updated on 30 October 2026 at 11:30am PT to update the indicators and clarify affected versions [Checked claim 3273]. ai notis. https://ainotis.com/c/3273

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