Broken Access Control in Suna Messaging API by Kortix AI
CVE-2026-66027

8.7HIGH

Key Information:

Vendor

Kortix-ai

Status
Suna
Vendor
CVE Published:
24 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-66027?

The Suna messaging API in versions prior to 0.9.102 is susceptible to a broken access control vulnerability, enabling authenticated attackers to exploit inadequate isolation measures. Attackers can gain unauthorized access to message queues belonging to other users, which allows them to read pending prompt queues, manipulate sessions, and send arbitrary prompts. This may lead to the execution of malicious actions within the context of the targeted user's AI agent, potentially compromising sensitive data and user credentials.

Affected Version(s)

suna 0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-66027 - Proof of Concept

References

https://github.com/geo-chen/oss/blob/main/suna.md
technical-descriptionexploit
https://github.com/kortix-ai/suna/releases/tag/v0.9.102
release-notes
https://github.com/kortix-ai/suna/pull/4373
issue-tracking

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

George Chen
.