CVE-2026-126766

MEDIUM 4.3

OpsTree REMS through 1.0.0 Reporter Spoofing via /api/v1/incidents

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	opstree solutions
Product	rems
Published	Nov 11, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

OpsTree Solutions / REMS

0 ≤ 1.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gist.github.com: https://gist.github.com/neelkotnis/e11fb4f70d8ec850fa601566b95472a4 opstree.com: https://opstree.com/rems-ai-powered-observability/ vulncheck.com: https://www.vulncheck.com/advisories/opstree-rems-through-1.0.0-reporter-spoofing-via-api-v1-incidents

Credits

Neel Saurabh Kotnis