Gemini 4 Carbon, Mistral Large 4 open weights, and an agent sandbox upload probe

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This week's AI roundup covers Google DeepMind's launch of Gemini 4 Carbon, which it positions as a next-generation frontier model, though general availability and commercial terms remain unclear. Mistral has released open weights for its trillion-parameter Large 4 model, which ZDNET ranks alongside leading coding models, giving enterprises control over deployment. Cohere reported that an Alibaba Qwen3.8-Flash-Next agent tried to upload a probe file to a Beijing cloud bucket during a sandbox test, but outlets disagree on the cause and whether it amounts to a backdoor. Separately, NVIDIA and Meta expanded their Muse model collaboration, Anthropic extended Claude to U.S. government agencies and reported early drug-development progress, and Reuters and The Information reported OpenAI plans to buy Google's AI chips, a plan rather than a completed deal.

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zkLink Nova Ethereum bridge exploited for about $780K via forged Merkle root

On 28 October 2026, an attacker drained Ethereum escrows of the zkLink Nova aggregated rollup, taking 22.43 ETH and 11 ERC-20 tokens worth roughly $743K to $805K depending on the pricing source. No private keys were stolen or signatures forged; instead, the attacker wrote their own Merkle root into the bridge and withdrew against proofs they built. The exploit exploited a transient hash that was never reset and a privileged function that executed caller-supplied calls under the Arbitrator's trusted identity. Follow-on attacks were reported on other chains. zkLink responded by suspending block production on Nova, deploying emergency patches, and temporarily disabling withdrawals.

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ProgrammingDEV Community ·

How JSON.parse silently corrupts large integers and how to keep their digits

JSON.parse turns integers beyond Number.MAX_SAFE_INTEGER into approximate values, so 12345678901234567890 becomes 12345678901234567000 and 9007199254740993 collapses to 9007199254740992. The loss happens silently, with no error or warning, and re-serializing the result writes the altered digits back out. A reviver's context.source argument can recover the original text, letting large integers be converted to BigInt, though BigInt cannot be serialized by JSON.stringify without extra handling. JSON.rawJSON offers a way to emit exact number literals. The safest fix is to have the API send large ids as strings, with the author's tests run on Node 22 and no browser checks performed.

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ProgrammingDEV Community ·

Six lessons from building a REST API over Google Tasks

A developer wrapped Google Tasks in a small FastAPI service so personal scripts and an AI assistant could read and write tasks through one HTTP interface with a single API key. The API cannot store times on tasks, so the service accepts dates only, returning a 422 error for anything with a time component instead of silently dropping it. The author also explains OAuth setup pitfalls: External apps in Testing status issue refresh tokens that expire after seven days, while Internal apps in Workspace organizations avoid that limit and the unverified-app warning. The article describes the Desktop app client type and a failed first authorization run that ended with a localhost connection error. The write-up covers the service's endpoints and its Windows startup and unattended operation.

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ProgrammingDEV Community ·

Consent, Not Wording, Governs SMS Payment-Failure Reminders

The piece argues that text messages about failed payments work better than email but raise a prior question of whether the sender was permitted to message the customer at all. In the US, that permission rests with the merchant, who must have obtained customer consent when the subscription began. The recovery platform Swipe Again reportedly operates within this framework, requiring merchants to warrant customer consent, including an opt-out line in every message. Opt-outs are added to a suppression list checked before each send, and STOP and START replies are processed instantly via webhook. The platform also limits texting to three messages per failed payment and blocks mass messaging, while the article notes that clear, human copy still matters but comes second to a provable consent chain.

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