CVE-2026-126766
OpsTree REMS through 1.0.0 Reporter Spoofing via /api/v1/incidents
OpsTree REMS through 1.0.0 contains an improper authorization vulnerability that allows authenticated users to set an incident's reporter to another user by supplying a client-controlled reporter field. Attackers can send crafted POST /api/v1/incidents or PATCH /api/v1/incidents/{id}/status requests to falsify incident attribution and corrupt the accountability audit trail.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| REMS OpsTree Solutions |
≥ 0; ≤ 1.0.0 (affected, custom)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 5.3 medium |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 4.3 medium |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | CNA: VulnCheck |
Exploit evidence
- https://gist.github.com/neelkotnis/e11fb4f70d8ec850fa601566b95472a4
exploit · CNA: VulnCheck
References
- https://gist.github.com/neelkotnis/e11fb4f70d8ec850fa601566b95472a4CNA: VulnCheck · technical-description, exploit
- https://opstree.com/rems-ai-powered-observability/CNA: VulnCheck · product
- https://www.vulncheck.com/advisories/opstree-rems-through-1.0.0-reporter-spoofing-via-api-v1-incidentsCNA: VulnCheck · third-party-advisory
For agents and automation
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Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
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