gcdRadar
live/Breaches & attacks/AIR-2026-1928
liveliveBreaches & attacks4 Confirmed real-world lossAI

Attackers breached 10 organizations using the open‑source AI pentest framework Cairn

Cairn

Attackers used the open‑source AI pentest framework Cairn to breach ten organizations, gaining unauthorized access and exfiltrating data. The campaign spanned August and September 2026 and targeted semiconductor, advanced‑manufacturing, and defense sectors.

why this severitySeverity 4 because confirmed data exfiltration affecting multiple organizations

first report
12 Nov 2026
last update
12 Nov 2026

What to do

Investigate the breach, reset compromised accounts, and strengthen monitoring for AI‑driven intrusion attempts.

Timeline · 1

  1. 12 Nov 2026Attackers breached 10 organizations with an open-source AI pentest framework

Sources · 2

News and write-ups

  1. 2026-11-12
    Attackers breached 10 organizations with an open-source AI pentest framework
    Help Net Security · helpnetsecurity.com/2026/11/12/cairn-autonomous-ai-cyberattacks
  2. 2026-11-12
    Attackers Use Autonomous AI to Target Semiconductor, Defense and Civil Society Sectors
    Unit 42 · unit42.paloaltonetworks.com/cairn-framework-ai-autonomous-attacks

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

AI role
AI-enabled attack
categories
AI-assisted intrusion
severity
4 · Confirmed real-world loss
targets
Not applicable
owasp llm top 10
no entry for these categories
mitre atlas
no technique for these categories
dates
happened Aug 2026 (approx.) · first reported 12 Nov 2026
origin
News & research feeds
record
confidence 0.95 · created 2026-11-12 15:10Z · updated 2026-11-12 15:47Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# Attackers breached 10 organizations using the open‑source AI pentest framework Cairn

https://gcdradar.vercel.app/incidents/attackers-breached-10-organizations-using-the-open-source-ai · AIR-2026-1928 · live

- Lane: Breaches & attacks
- Severity: 4 (Confirmed real-world loss): Severity 4 because confirmed data exfiltration affecting multiple organizations
- Fix status: No fix needed
- First reported: 2026-11-12 (happened 2026-08)
- AI role: AI-enabled attack
- Products: Cairn

## Summary

Attackers used the open‑source AI pentest framework Cairn to breach ten organizations, gaining unauthorized access and exfiltrating data. The campaign spanned August and September 2026 and targeted semiconductor, advanced‑manufacturing, and defense sectors.

## What to do

Investigate the breach, reset compromised accounts, and strengthen monitoring for AI‑driven intrusion attempts.

## Latest updates

- 2026-11-12: Attackers breached 10 organizations with an open-source AI pentest framework (https://helpnetsecurity.com/2026/11/12/cairn-autonomous-ai-cyberattacks)

## Sources

- 2026-11-12 Help Net Security: Attackers breached 10 organizations with an open-source AI pentest framework https://helpnetsecurity.com/2026/11/12/cairn-autonomous-ai-cyberattacks
- 2026-11-12 Unit 42: Attackers Use Autonomous AI to Target Semiconductor, Defense and Civil Society Sectors https://unit42.paloaltonetworks.com/cairn-framework-ai-autonomous-attacks

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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