Improper Attribution Vulnerability in OpsTree REMS Affects User Incident Comments
CVE-2026-126772

5.3MEDIUM

Key Information:

Vendor

Opstree Solutions

Status
Rems
Vendor
CVE Published:
11 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-126772?

OpsTree REMS up to version 1.0.0 is susceptible to an improper attribution vulnerability that permits authenticated users to exploit the comment functionality. This can lead to lower-privileged attackers posting comments impersonating higher-privileged users, such as Super Users, thereby compromising incident timelines and corrupting the audit trail. This vulnerability can severely affect the integrity of incident data and the overall reliability of the incident management process.

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-2026-126772 - Proof of Concept

References

https://gist.github.com/neelkotnis/5a5c810e16a3f242f33619...
technical-descriptionexploit
https://opstree.com/rems-ai-powered-observability/
product
https://www.vulncheck.com/advisories/opstree-rems-through...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
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
.