CVE-2026-126772: medium-severity vulnerability in OpsTree Solutions REMS
OpsTree REMS through 1.0.0 Comment Author Spoofing via Incident Comment API
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.3%
OpsTree REMS through 1.0.0 contains an improper attribution vulnerability that allows authenticated users to post comments as the incident creator via POST /api/v1/incidents/{incident_id}/comment. Lower-privileged attackers can comment on incidents owned by users such as a Super User to impersonate them and corrupt the incident timeline and audit trail.
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
Affected products
OpsTree Solutions · REMSpublic PoCs found — 1
cve_referencegist.github.com/neelkotnis/5a5c810e16a3f242f336198b32213629unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — OpsTree Solutions REMS
In the same product, most dangerous first.
CVE-2026-126768CRITICALOpsTree REMS through 1.0.0 Authentication Bypass via is_local_auth FlagEPSS 0.8%CVE-2026-126769HIGHOpsTree REMS through 1.0.0 Missing Authentication via /api/v1/databases Governance APIEPSS 0.7%CVE-2026-126767MEDIUMOpsTree REMS through 1.0.0 Prompt Injection via RCA Chat AssistantEPSS 0.3%CVE-2026-126770MEDIUMOpsTree REMS through 1.0.0 SSRF via Database Test ConnectionEPSS 0.3%CVE-2026-126766MEDIUMOpsTree REMS through 1.0.0 Reporter Spoofing via /api/v1/incidentsEPSS 0.3%CVE-2026-126771MEDIUMOpsTree REMS through 1.0.0 Stored XSS via Attachment Upload and PreviewEPSS 0.3%