CVE-2026-126767: OpsTree Solutions REMS · Improper Neutralization of Input Used for LLM Prompting
Affects OpsTree Solutions REMSSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium.
Data as of 11 Nov 2026, 18:35 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 5.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 4.3 |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| OpsTree SolutionsREMS | Affected
| Fixed in– |
AI-suggested
Since the vulnerability requires authenticated access, restricting user privileges and monitoring for unusual chat input may reduce risk. Check with OpsTree Solutions for any forthcoming patches or updates addressing this issue.
Description
OpsTree Solutions REMS versions up to 1.0.0 contain a prompt injection vulnerability that allows authenticated users to disclose hidden system prompts by submitting crafted input to the chat API. This flaw enables attackers to bypass assistant rules and reveal internal orchestration instructions, potentially facilitating further prompt injection attacks.