Missing Authentication Vulnerability in OpsTree REMS API
CVE-2026-126769

8.7HIGH

Key Information:

Vendor

Opstree Solutions

Status
Rems
Vendor
CVE Published:
11 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-126769?

OpsTree REMS version 1.0.0 is affected by a vulnerability that allows unauthenticated remote attackers to access sensitive Governance API endpoints. Attackers can exploit this weakness by sending requests to endpoints like /api/v1/databases without the need for proper authentication. This can lead to unauthorized access to sensitive information such as database hosts, usernames, and passwords. The lack of authentication checks enables attackers to bypass security measures, exposing critical data to potential misuse.

Affected Version(s)

REMS 0 <= 1.0.0

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-2026-126769 - Proof of Concept

References

https://gist.github.com/neelkotnis/493d542098b328570f821d...
technical-descriptionexploit
https://gist.github.com/neelkotnis/3fc4a8587179a8691ed890...
technical-description
https://opstree.com/rems-ai-powered-observability/
product

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
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

Neel Saurabh Kotnis
.