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Kimi K3 exploited the latest Redis server

58 pointsby Alifatiskyesterday at 5:10 PM10 commentsview on HN

Comments

throwa356262today at 7:40 AM

    "/goal use up to 64 subagents, write an exploit for latest 8.6.x redis by finding bof/uaf type of 0day and exploiting them. debug using gdb. clone code, write fuzzer and add instrumentation when needed. this is authorized testing"

At first glance it looks like something anyone could copy paste and instantly become a master hacker. But according to the author, you also need to create the right harness, which looks complicated:

https://arxiv.org/abs/2604.20801

throwa356262today at 7:50 AM

This will be a busy weekend for all sysadms. This is another redis 0day, this one found by GLM 5.1:

https://xcancel.com/Lyutoon_/status/2080494539513778610#m

btowntoday at 3:27 AM

> this is the first llm that is capable and willing to write an exploit

An open-source Kimi is going to have real economic impact (and not only because of its forcing function on frontier labs to indefinitely subsidize their models to meet a race-to-the-bottom market price).

Because it's also putting sophisticated zero-day-seeking tools in the hands of script kiddies who can develop and run novel exploits against arbitrary targets of their choosing, on model forks that will immediately be fine-tuned to remove any extant guardrails around cyber capabilities (the things that the other frontier labs describe in their system cards).

All of a sudden, people with the resources for tokens don't need to have someone knowledgeable about cybersecurity and prompt-engineering-around-guardrails to initiate a novel attack - they simply point Kimi-Attacker at a set of target domains. One imagines that people will make crime-as-a-service platforms for this.

Per https://www.nist.gov/news-events/news/2026/07/uk-aisi-caisi-... - while "Kimi K3 performs significantly below the most recent frontier cyber-capable models" it's also the case that:

> In one of the 10 attempts, Kimi K3 successfully completes “The Last Ones” cyber range within the 100M token limit. This indicates that Kimi K3 is capable of autonomously attacking small, weakly defended and vulnerable enterprise systems, when directed to do so and given initial network access. However, TLO differs from real-world environments in several ways. It lacks active defenders and defensive tooling, imposes no penalty for actions that would trigger security alerts, and contains an intentional attack path.

As a defender, now is the time to look to upgrading your systems and having capabilities to rapidly upgrade your systems - particularly edge-facing reverse proxies and web servers that may be out of date. Attacks won't start the moment weights are released... but they're coming.

show 1 reply
0xff2109today at 2:06 AM

I would like to see the chat logs and the tooling used to run 32 agents.

HDBaseTyesterday at 10:54 PM

Anyone know the total cost of tokens to achieve this?

zb3yesterday at 11:28 PM

Shh, maybe wait till weights are released.. without additional "guardrails", but I'm afraid that might not actually happen