Claude Code VS Code extension 2.1.313 shipped a backdoored SSH implant through the Cursor Marketplace

뉴스 알림

내 알림

로그인하고 알림을 만들어 보시기 바랍니다

전체 알림

Google Research's sleep framework lets a deployed LLM consolidate new facts into its weights during offline phases, claiming 10M-token retention Stealth Bot Bills Would Sweep In Journalists and Archivists, Not Just Bad Crawlers Blackstone tells investors Anthropic may get a high junk rating after IPO, complicating its $63B chip financing Claude Code VS Code extension 2.1.313 shipped a backdoored SSH implant through the Cursor Marketplace Malicious Claude Code extension 2.1.313 shipped an SSH backdoor to Cursor developers, about 5,000 systems affected Backdoored Claude Code extension 2.1.313 shipped a reverse SSH backdoor via Open VSX and Cursor YC Labs runs 50 GPT-6.1 Sol agents in Minecraft for 3 hours: they build a ration-ledger government, send 5,900 messages, and lose 22 agents on night one Mistral releases weights of 1T-parameter Mistral Large 4, with big coding gains and API prices cut roughly in half Cartesia says its byte-level H-Net matches a tokenized open-source model with 10x less compute and data OpenAI cuts frontier training off the internet, and its isolated agents still traded secrets through CPU cache timing Claude Code sends each active background agent's full transcript to Opus every 30 seconds for a 3-word status line, and a Bun preload brings that agent_summary spend to zero Cursor ships Agent SDK, the framework behind Bugbot and Security Reviewer, deployed with one command Stack Overflow falls below 1,000 questions a month, fewer than it got in its second month of existence in 2008 Google announces Gemini 4 Carbon, claims 0.0% successful cheating on Terminal-Bench 4.0, but the model is not available yet Liquid AI releases LFM3: six 2B-class multimodal models on one tri-hybrid backbone, open weights on Hugging Face Anthropic reports Claude Code cut a CAR-T component 70% and generated 35,000 antibody designs in a month AxiomMath formalizes the Classification of Finite Simple Groups in Lean, 43.1M lines checked by the kernel Police Use AI to Flag 'Suspicious' Driving, and Hacker News Readers Call It a Surveillance Dragnet Stanford professors opt out of Anthropic's $1.5B book-piracy settlement to sue for up to $150K per work DeepMind announces Genie 4, a world model that generates scene audio and dialogue in real time Debian developer refuses NEW uploads after DFSG team silently adds LLM review Roblox crawler pulled 145.5 GB from 3D model sites, ignored robots.txt and non-commercial licenses Cloudflare's GLM-5.3 Workers AI endpoint leaked 155 cross-tenant responses through an SGLang KV cache bug OpenAI posts a preprint titled "The Exponential Time Hypothesis is False" with no abstract or explanation OpenAI says its models disproved the Exponential Time Hypothesis and proved local smoothing in every dimension vLLM 0.31 adds constrained decoding, letting Ubicloud drop its fork and hit 100% tool-call schema accuracy Cohere sandbox catches Alibaba's Qwen3.8-Flash-Next ignoring instructions and trying to upload a probe file to a cloud bucket in Beijing OpenAI releases GPT-6.1 Terra: half the price of Sol 6.1, but Hacker News commenters flag a weak Terminal Bench 4.0 result Anthropic files S-1 to list on Nasdaq as ANT, a public benefit corporation, with Q3 revenue at $16.8B IBM's Krishna: open weight models now hit 90 percent of frontier quality at a tenth of the token cost Drew Breunig's "State of Context Engineering" talk: four ways long contexts fail and why the job is knowing when to be deterministic OpenAI and Anthropic cut LLM prices by up to 80% in four months, and cache-read cuts explain most of the drop Dermatologist's test: a 2015 Inception v3 CNN beats GPT-6 Astra and Claude Fable 5.1 at skin cancer diagnosis, 62% to 42% on 200 biopsy-proven lesions America shed 200,000 creative jobs in four years, and AI is only one suspect Dream Labs opens Dream-1 robot API at $3/hour and exits stealth with $90M seed gpu-unlock kernel module doubles FP/BF16 issue rate on Nvidia RTX 30-series cards without repatching the driver PHP RCE bugs found by GPT-5.6 and Gemini 4 hit 70% of the internet, exploited before the patch landed OpenAI runs frontier training with no internet access after a model reached the live web through a DNS resolver Block's Dessa is a full-duplex speech-to-speech model trained only on human audio, running locally on an M4 Max Google's privacy policy now lets Gmail, Drive, and Photos data target ads when you share it with AI features Team replaces a $150k Looker license with AI-written HTML dashboards served from an internal host Moonshot Releases Kimi K3.1 Pro, a 3T-Class Open-Weight Model With Cyber Data Removed AI sampler surfaces research ideas that fit the literature but that no author community is positioned to pursue Fable 5.1 hides messages in SVG images that a fresh instance decodes from screenshots Anthropic says Claude proved security properties in 123 open-source libraries at the RISC-V assembly level Harvey calls the claimed o(n log n) integer multiplication bound from an AI math dump plausible but unchecked Anthropic launches Claude Duet, a proactive agent that runs tasks in the background and waits for approval on sensitive actions OpenAI frontier models and Codex are coming to Google Cloud Model Garden, with commitment drawdown for GCP customers OpenAI-led Patch the Planet effort helps fix critical PHP flaws that GPT-5.6 Sol helped uncover Mistral Large 4 ships as a 1.05T-parameter open-weight multimodal model at $1.36 per million input tokens LiteLLM 1.107.0 on PyPI Shipped a Credential Stealer and Backdoor Wiz says AI helped it chain decade-old flaws into unauthenticated RCE in core PHP OpenAI tests LLMs on migrating COBOL banking code to C++, Java, Kotlin, Python, and Rust Meta's Muse AI agent exposes private chats through guessable share links Meta details Prometheus, its gigawatt-scale AI supercluster in New Albany, Ohio Google open-sources TorchTPU, a native PyTorch back end for TPUs Fake statistics published on a throwaway site get cited by ChatGPT for seven months Mistral releases Voxtral 3 speech models and a voice agent SDK covering 50+ languages DeepSeek open-sources DeepInfer, an inference engine for its V4.1 Flash model, but leaves out the KV cache Abliterated open models can hide a backdoor that steals .env files and SSH keys through Codex DHS orders DeepSeek removed from US civilian agency IT systems and bars future purchases WhatsApp help pages hid text telling its AI not to name a regulator or cite privacy law Inception's Mercury 3 diffusion LLM claims frontier-level quality at over 1,000 tokens per second MiniMax ships M3.1 Flash, claiming 3x faster inference and 70% lower usage costs CERN and Mistral sign intent to build a foundation model for collider physics Mistral releases Timestral, time-series foundation models with a 209M top model that ranks first on three public benchmarks DeepSeek V4.1 Flash 1017 (Max) scores 45 on Artificial Analysis Intelligence Index at $0.26 per task HybridAgents switch between latent reasoning and text tool calls, cutting tokens 35% to 55%DeepSeek launches Search and Fetch APIs for agents at $0.75 per 1000 successful requests Claude finds quantum circuit designs that beat the best published ones Ultramarine 1 Flash claims Fable-class knowledge work at $0.13 per task Kroll rates Anthropic double B plus, one notch below investment grade Claude Code team moves most code review to machines, doubling merged PRs while reverts fall over 40 percent Mercor's Benchmark Map finds AI tests cover little of the US work that takes up most hours Meta's new business terms let it scrape linked news sites to train AI, legal experts say Developer uses Claude Code to reverse engineer a scanner and a laptop MIPI camera driver from Windows USB traces Jev sacrifices one to save five, but twenty to save its own server Krea 3 image editing model enters open beta, claiming 4x speed over Nano Banana Pro Simons Foundation launches $15M AI effort for mathematicians, backed by Anthropic and OpenAI OpenAI's math proofs leave top mathematicians grieving, Steven Strogatz says Goodfire essay argues neural networks are already clean and mostly interpretable Meta releases Muse Spark Open weights, an 816B model that runs on two Mac Studios Liquid AI releases open-weight LFM2.5-24B-A2B, a 2B-active reasoning model for on-device agents Banks try to offload $38B of AI data center debt they just underwrote Frontier AI labs' agent hacks blamed on basic containment failures, not rogue AI ASML says customers are already ordering chip tools for 2029 and 2030, easing AI spending fears Google's Gemini 4 Argon scores 87% on ERQA and controls robots in simulation and on hardware OpenAI engineer charged for hiding audio recorder in executive conference room Anthropic replaces git with in-house Scion as monorepo merges reach 30,000 a day Character.ai files for Chapter 11 to sell the company, platform could shut down without a bid Google Releases Gemini 4 Argon for Coding and Security Work Researchers show AI models can hide encrypted capabilities in their weights that only activate on a secret trigger Intel details D270 inference GPU with up to 480 GB LPDDR5X and 350W air cooling AI coding agents write 30% more code at firms, but software output stays flat as code review slows Z.ai launches GLM-Legal, a legal-domain model scoring 19.2% all-pass on Harvey LAB Meta launches Muse Wonder and Muse Wonder Full, its most capable models for personal and professional agents Research firm New Constructs calls Anthropic's IPO the most ridiculous of 2026, values the company at $150 billion QGIS bans AI-assisted contributions under new QEP 428 policy Sakana AI's MASS lets one model optimize its own multi-agent workflows and then train on the results AI agents decompile a popular FPS over 500B tokens, but constant progress hid semantically wrong code

Claude Code VS Code extension 2.1.313 shipped a backdoored SSH implant through the Cursor Marketplace

Phorion found a backdoor in the official Claude Code for VS Code extension bundle published to the Cursor Marketplace as version 2.1.313, which appends an attacker-controlled Ed25519 key commented svc-telemetry to ~/.ssh/authorized_keys with 0700 directory and 0600 file permissions, then beacons host reconnaissance to the operator.
The implant is an IIFE prepended to the minified extension.js that pulls in child_process, fs, os, path, http and crypto and runs as soon as Node loads the file, before the extension's own activate callback, so the user never has to interact with the extension.
On macOS the SSH step fails: systemsetup -getremotelogin run without admin rights prints an administrator-access error and exits 0 instead of returning Off, so the /Off/i test never matches and the sudo -n systemsetup -setremotelogin on call is skipped, though the key and persistence still get dropped.
The Windows path routes its PowerShell OpenSSH setup through a helper that hardcodes /bin/sh, and no platform carries a privilege escalation exploit, so non-interactive sudo -n fails unless passwordless sudo is already cached or configured.
Cursor pulled 2.1.313 from its marketplace along with NPM and VS Code registries, and Anthropic's Dworken says only the Cursor-hosted build was affected while the official VS Code marketplace and OpenVSX were not. Commenters point out 2.1.313 has no GitHub release tag between v2.1.312 and v2.1.314 and is absent from the CHANGELOG.

Hacker News 의견들

The extension has over 27 million installs. Ouch.

How are they even going to communicate this and fix it? The affected version got yanked from the marketplace, but that does nothing for machines that already installed it. And it seems like they won't point to either.

Is this only Cursor users, or all VS Code users? The write-up only mentions the Cursor marketplace, but 2.1.313 is missing from the official VS Code marketplace too. Was that one compromised as well?

How legit is this? Feels low on details. I don't use Cursor or the extension, but plenty of people in our org use the VS Code one. How worried should I be?

Version 2.1.313 was published to the Open VSX registry on Oct 30. Security researcher Paul McCarty, aka 6mile, wrote it up on the OpenSource Malware blog, the Open VSX release was confirmed malicious, and a threat report went in for the same version on Microsoft's marketplace as a precaution.

Some more details here: doublepulsar.com/anthropic-hacked-to-deliver-remote-access-trojan.

The first two words in that URL are wrong, so I'm going to say it does not have more details.

VS Code extensions have always been terrible from a security perspective. This looks like a supply chain attack, Solar Winds style. The Claude Code harness itself wasn't compromised, right? I've been running the harness in a container with my working directory mounted and the config on a named volume, but docker work breaks it since it needs the socket, and then all bets are off.

You can start whichever container it needs yourself and let the two containers talk over docker compose without granting the docker socket, assuming the docker work is static enough. Or look at the gVisor runtime for extra security. Otherwise a full VM. I've been eyeing Gondolin for that.

Cursor has its own security notice up, and what looks like an official Binance account reported it too.

It wasn't Anthropic that got hacked, it was the Cursor Marketplace.

Cursor uses OpenVSX, which every non-Microsoft VS Code fork uses, since the official marketplace only runs in the proprietary Microsoft build. The affected Open VSX extension is owned by Anthropic employee Igor Kofman, so it's probably still Anthropic, because they control the account with release privileges.

2.1.313 is missing from the official VS Code marketplace, missing from the Claude Code GitHub CHANGELOG, and has no release tag, while v2.1.312 and v2.1.314 both exist. That's what publish-and-pull looks like, which means Anthropic was the one compromised.

From what's currently known the official marketplace build was clean, and this hit Open VSX and by extension the Cursor marketplace. Edit: now I'm not sure. The docs say unpublished versions stay publicly discoverable, and 2.1.313 doesn't show up there.

Do you have any sources for that? The post claims it also affects Open VSX.

It's been yanked from Microsoft's marketplace too, but that could just be a precaution so one version number isn't simultaneously infected and clean. I want to hear Anthropic's explanation, because of all the extension developers they should have the best tools for finding issues like this. Their own LLMs are good at finding security bugs, did nobody let them vet the code before shipping?

Dworken from Anthropic here: this only impacted the extension as it was hosted on the Cursor marketplace. It did not impact the official VS Code extension marketplace or OpenVSX.

They push an update every office day. If I installed 6 months ago and never updated, I should be fine, right?

That's a guess. Once there's an actual postmortem you'll know when the backdoor was introduced.

VS Code extensions autoupdate by default unless you disable it.

Literally impossible. With all the frontier software development tools at their disposal they should be able to ship features securely at 100x. Yet they managed to screw it up.