Checked fact 327531 Oct 2026Safety and security

The notice says the malicious versions were available between about 2:27am PT and 1:35pm PT on 29 October 2026.

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The exact words it rests on

Between about 2:27am PT and 1:35pm PT today, a maliciously modified version of Anthropic’s Claude Code extension was made available in the Cursor VS Code Extension Marketplace.

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

Open the source archived copy

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

Cite this fact

Short permanent address

In a sentence

“The notice says the malicious versions were available between about 2:27am PT and 1:35pm PT on 29 October 2026.” 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/3275

As a reference (APA style)

ai notis. (2026, October 31). The notice says the malicious versions were available between about 2:27am PT and 1:35pm PT on 29 October 2026 [Checked claim 3275]. ai notis. https://ainotis.com/c/3275

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