OpsTree REMS: Authentication bypass vulnerability (CVE-2026-126768)
OpsTree REMS through version 1.0.0 contains an authentication bypass vulnerability allowing unauthenticated attackers to obtain valid JWTs and gain administrative access via parameter manipulation.
CVE search metadata
CVE search record: CVE-2026-126768. Severity: critical. CVSS: 9.8. KEV: no. Product: REMS. Brief: OpsTree REMS: Authentication bypass vulnerability (CVE-2026-126768). Brief link: https://feed.craftedsignal.io/briefs/2026-11-opstree-rems-auth-bypass-cve-2026-126768/
Triage facts
Revision 1- Applicability
- REMS
- Evidence
- Unknown
- Severity
- Critical
- Sources
- 1 public source
- Freshness
- Revision 1Nov 11, 20:04 UTC
- Detection
- 1 rule
- Vulnerabilities
- 1 CVE
- Source quality
- A2Roughly even chance
OpsTree REMS through version 1.0.0 contains an authentication bypass vulnerability. Attackers can send a POST /api/v1/user/login/ request for the admin account with an invalid password and the is_local_auth field set to true to bypass authentication.
Impact
Successful exploitation allows an unauthenticated attacker to obtain a valid JWT for an administrative account, resulting in SuperUser administrative access.
Recommendation
Monitor logs for the POST /api/v1/user/login/ request pattern where the client-controlled is_local_auth field is set to true.
Detection coverage 1
Detect CVE-2026-126768 Exploitation - Authentication Bypass in REMS
criticalDetects POST requests to the login endpoint with the is_local_auth parameter set to true.
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