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VulnerabilityPublished

CVE-2026-126767: OpsTree Solutions REMS · Improper Neutralization of Input Used for LLM Prompting

Affects OpsTree Solutions REMSSource CVE Database V5

0
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Not known to be exploited · CVSS 5.3 Medium.

Data as of 11 Nov 2026, 18:35 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.05.3
CNA (VulnCheck)CVSS 3.14.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
OpsTree SolutionsREMSAffected
  • <=1.0.0
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.

References

Community reviews

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