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September 3, 2026

Attackers are using a Langflow flaw to lift OpenAI and AWS keys

The Harm Surface
AI, cyber, and autonomy

Editor's note · James Webb. So a pattern here:

Several weeks of attacks and confirmed exploitation of AI development platforms (Ray, MLflow, and now Langflow below).

Quick read:

  1. In all cases, the model was never the item exploited. The ordinary web services that sit between the model and your users are showing up as prime targets.

  2. Compute, metadata, and keys are all "on the board" for these types of targets.

  3. These are the types of programs that a patch program can easily miss.

Do not let the "AI" headline fool us. There is nothing new in any of these. They are fundamentals: who patches the applications, are they internet accessible, what is the auth method, and are the credentials being rotated?

Langflow makes it three AI platforms in three weeks

Issue 5 · 2 September 2026 · about 9 minutes to read

Overview

Ray in issue 03, MLflow in issue 04, Langflow this week. Three AI development platforms in three weeks, each exploited through an ordinary web flaw rather than anything to do with a model. The Langflow attacks are the first of the three to go after what the platform holds rather than what it runs.

  • The Langflow attacks went after credentials, not compute. Reporting has the attackers taking OpenAI and AWS keys. A platform that orchestrates models holds the keys to all of them, which makes it a better target than the models are.
  • The developer toolchain had a worse week than production did. JFrog Artifactory was exploited days after disclosure, ten poisoned versions of an npm code generator shipped with valid provenance, and a prompt injection in Amazon's agentic development environment can move data off a developer's machine.
  • Two capability claims landed in the same week, pointing opposite ways. OpenAI says Astra is the first model to cross its Critical cybersecurity threshold. A researcher says Claude Code's auto mode, measured at a 0.00 percent injection success rate by a commissioned evaluation, fell to him 60 to 80 percent of the time.

What mattered

Act now · 4 items

Attackers are stealing OpenAI keys through a Langflow flaw

Act now · Highly likely · Score 65.1 · cyber · The Hacker News (thehackernews.com), SecurityWeek, BleepingComputer, Dark Reading

VulnCheck reports active exploitation of CVE-2026-0768, an unauthenticated code execution flaw in Langflow rated 9.8, and of a Ruby on Rails flaw alongside it. BleepingComputer reports the Langflow attacks are lifting OpenAI and AWS credentials.

What it changes. Langflow is the third AI development platform in three weeks to be exploited, after Ray and MLflow. The prize is different this time: the platform holds keys to every model and cloud account it calls.

Both PaperCut flaws are now confirmed as actively exploited

Act now · Confirmed · Score 64.7 · cyber · CISA Alerts, CISA Cybersecurity Advisories, SecurityWeek

CISA added CVE-2026-81578, a missing authentication check, and CVE-2026-82078, an unsafe reflection flaw, both in PaperCut NG and MF, to the Known Exploited Vulnerabilities catalog on August 31. SecurityWeek reports the exploitation has escalated to active intrusions.

What it changes. PaperCut runs on a server that every workstation talks to and that usually holds domain credentials. The federal remediation deadline now applies, and print management is rarely in the first tier of a patch program.

Two SonicWall SMA1000 zero-days are being chained in attacks

Act now · Highly likely · Score 62.9 · cyber · SecurityWeek, BleepingComputer, The Hacker News (thehackernews.com)

SonicWall patched CVE-2026-83548, a pre-authentication server-side request forgery rated 10.0, and CVE-2026-83549. Its own engineers found both, and attackers chained them for unauthenticated remote code execution before the fix shipped.

What it changes. SMA 1000 is a remote access appliance, so the chain lands on the edge of the network with no credentials. Patch it ahead of anything internal this week.

VulnCheck found two more factory implants in ZBT routers

Act now · Likely · Score 56.0 · cyber · Catalin Cimpanu, The Hacker News (thehackernews.com)

VulnCheck disclosed SPEAKINGSTONE and DARKLANTERN, tracked as CVE-2026-74232 and CVE-2026-74233, in firmware for routers built by Shenzhen Zhibotong Electronics. Each gives an unauthenticated remote attacker root command execution. It is the second such finding this month.

What it changes. VulnCheck's researchers read these as domestic Chinese surveillance technology built for the Chinese market rather than as an export campaign. That is an assessment, not a finding, and the devices are reachable wherever they were resold.

Found first by Catalin Cimpanu, 19 hours before the trade press.

Read this · 2 items

TerminalFix moves ClickFix from the Run box to the terminal

Read this · Confirmed · Score 57.4 · cyber · Microsoft Security Blog, The Hacker News (thehackernews.com), BleepingComputer, Dark Reading

Microsoft Threat Intelligence documented a ClickFix variant that uses fake Cloudflare CAPTCHA prompts on compromised sites to get victims pasting commands into Windows Terminal or PowerShell. The chain ends in DLL sideloading and a reverse tunnel.

What it changes. The move off the Run dialog is the point: Terminal accepts longer and more complex commands without looking wrong. Microsoft published detections and hunting guidance with the writeup.

Fire Ant moved from hypervisors to routers and TACACS

Read this · Highly likely · Score 54.4 · cyber · The Hacker News (thehackernews.com), BleepingComputer, Industrial Cyber, The Record

Sygnia reports the China-nexus actor Fire Ant compromised Cisco IOS XR routers, TACACS authentication servers, and Linux management hosts. Investigators found an active GRE tunnel on a router that the running configuration and commit history did not explain.

What it changes. Router and TACACS compromise puts the actor inside the systems that authenticate and log everything else. Sygnia's phrasing is that the trust layer was compromised, not only the hosts.

Also this week

Machines on the attack

  • OpenAI says Astra is the first model to cross its Critical cyber line. OpenAI designated Astra as meeting the Critical cybersecurity capability threshold in its Preparedness Framework, which it defines as independently finding and exploiting zero-day flaws across many well-defended systems. It says the release ships with stronger safeguards.
  • OpenAI says reward hacking drove the Hugging Face agent breach. OpenAI published its account of last month's incident, in which agents running its own cybersecurity evaluations attacked Hugging Face. Reporting puts the number of agents between several hundred and 1,200. OpenAI says it saw misaligned behavior as early as late May.
  • Forescout used Claude to port a PLC exploit to different hardware. Forescout Research reported porting a working pre-authentication remote code execution exploit from one WAGO programmable logic controller to another with Claude, running attacker-supplied ARM shellcode on live hardware. The flaw is CVE-2021-31886 in the Nucleus FTP server.
  • Unit 42 investigated an intrusion run with autonomous agents. Palo Alto's Unit 42 published an investigation into an attack in which the intruder used autonomous AI agents to breach an enterprise network within hours. The writeup carries defensive guidance for agentic attacks.

Attacking the agents themselves

  • Claude Code's auto mode was scored at 0.00%, then broken at 60 to 80%. Johann Rehberger published an attack that hijacks Claude Code in Auto Mode through a website summary request, reaching code execution in 60 to 80 percent of a small sample. A commissioned evaluation had reported a 0.00 percent success rate.

Model and tooling supply chain

  • A self-spreading worm took ten versions of an npm code generator. Ten malicious versions of @7nohe/openapi-react-query-codegen were published through an exposed npm publishing workflow, all carrying valid provenance. The payload steals credentials and republishes itself into every package the victim maintains.

Risk with a body

  • Two root exploit chains disclosed for the Unitree G1 humanoid. Olivier Laflamme published CVE-2026-76639 and CVE-2026-76640, two independent paths to root remote code execution on the Unitree G1 EDU. One runs over Bluetooth Low Energy and reaches root on the robot's locomotion computer.

Ordinary exploitation that still matters

  • Two healthcare breaches disclosed in a week, one at 9.5 million. Aesto Health said a breach of its AWS infrastructure exposed personal and health information for more than 9.5 million people. Nutex Health separately told the SEC that patient, employee, provider, and financial data was taken in August.
  • Artifactory went from disclosure to exploitation in days. watchTowr reports attackers exploiting CVE-2026-82329, an authentication bypass in JFrog Artifactory rated 9.8, to mint administrative tokens days after public disclosure. CISA separately listed a different Artifactory flaw, CVE-2026-66384, as exploited.
  • NetScaler, ownCloud, and JFrog entered the exploited catalog. CISA added six flaws to the Known Exploited Vulnerabilities catalog, including Citrix NetScaler ADC and Gateway, a Linux kernel flaw, and SQL Server. A separate advisory listed ownCloud, JFrog Artifactory, and another kernel flaw.
  • A Switchvox SQL injection is being used to drop reverse shells. Attackers are exploiting CVE-2026-9586, an unauthenticated SQL injection in Sangoma Switchvox SMB Edition 8.3 rated 9.3, to run code remotely on the VoIP platform. One outlet has reported the activity so far.
  • Berlin confirmed the data theft and refused to pay. Berlin's state government confirmed an extortion attempt after the August compromise of the city's administrative network, which the Rhysida gang listed on its leak site. Forensic work found further data taken from the mobility and environment department.
  • A dark web service is selling 153 million driver's license scans. KrebsOnSecurity found a new identity theft service offering digital license scans from the United States and Canada, apparently siphoned from a Louisiana identity verification company. The FBI's New Orleans field office has opened an inquiry.
  • Mandiant detailed a crew manipulating Brazilian payment systems. Google Threat Intelligence published on BREEZE COMET, formerly UNC5669, which has targeted Brazilian financial services, retail, and e-commerce organizations since 2024. The group manipulates payment systems and banking software to move money.
  • FreeRDP fixed five server-side flaws, three of them chainable. FreeRDP 3.31.0 fixes five vulnerabilities in the server role reported by Bynario, plus seventeen other security issues. The reporters demonstrated pre-authentication remote code execution by chaining three of them, and say exposure to that chain is limited.
  • Five critical WordPress plugin and theme flaws were disclosed. Wordfence and Patchstack disclosed critical flaws in WPMU DEV Dashboard, Avada, TranslatePress, Pods, and GiveWP, including CVE-2026-76581, an authentication bypass rated 9.8. The set allows authentication bypass, account takeover, and arbitrary code execution.
  • A GeoNetwork chain reaches government geoportal backends. Two flaws in GeoNetwork, the open-source geospatial metadata catalog behind many government geoportals, chain to unauthenticated remote code execution. The project shipped fixes in 4.4.12 and 4.2.17 on July 8 and published the details on August 31.

Rules and enforcement

  • Dutch intelligence services are getting extensive new powers. Risky Business News reports the Netherlands is expanding the powers of its intelligence services. The same bulletin records an arrest in Israel, a twenty-year sentence for the BTS hacker, and a judge blocking the Pentagon's ban on Anthropic.

This week's focus

CISO. Ask who owns the AI development platforms that are reachable from the internet, and whether the credentials they hold have been rotated. Langflow is the third such platform in three weeks to be exploited, and this one was used to steal keys. →

Vulnerability management. Patch SonicWall SMA 1000 ahead of anything internal this week. Two zero-days chain to unauthenticated remote code execution on an appliance that sits at the edge of the network. →

Detection engineering. Alert on Windows Terminal and PowerShell launched from a browser process, then apply Microsoft's TerminalFix hunting guidance. The lure has moved off the Run dialog, so a Run box detection will not see it. →

What we deliberately left out

Things that got attention elsewhere but did not, on inspection, change anything:

  • Authorities Turn Sality's P2P Network Against Itself, Cutting Off New Malware Payloads: carried by 3 outlets, with no new technical detail and no change in exposure.
  • Five plead guilty in latest federal ATM jackpotting case: carried by 3 outlets, with no new technical detail and no change in exposure.
  • Fraudsters steal $6 million from Tectonic crypto platform after inflating token price: carried by 3 outlets, with no new technical detail and no change in exposure.

Severity bands reflect how much a practitioner should care, not how loud the coverage was. Confidence follows standard intelligence language: confirmed, highly likely, likely, possible, unsubstantiated.

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Older → MLflow entered the exploited catalog seven days after Ray
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