{"affected":[{"defaultStatus":"unaffected","product":"REMS","source":"CNA: VulnCheck","vendor":"OpsTree Solutions","versions":[{"lessThanOrEqual":"1.0.0","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-126772","cwes":["CWE-863"],"description":"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.","epss":null,"exploits":[{"kind":"exploit","source":"CNA: VulnCheck","url":"https://gist.github.com/neelkotnis/5a5c810e16a3f242f336198b32213629"}],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":4.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}],"modifiedAt":1794420677898,"publishedAt":1794420677898,"references":[{"source":"CNA: VulnCheck","tags":["technical-description","exploit"],"url":"https://gist.github.com/neelkotnis/5a5c810e16a3f242f336198b32213629"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://opstree.com/rems-ai-powered-observability/"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/opstree-rems-through-1.0.0-comment-author-spoofing-via-incident-comment-api"}],"remediation":[],"revision":"810e2ec7be155ad6cab6ee65cea72a92c36fe82e1a860d57691026d26e00b4db","sources":[{"modifiedAt":1794420677898,"name":"CNA: VulnCheck","retrievedAt":1794424131085,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126772"}],"ssvc":null,"status":"published","title":"OpsTree REMS through 1.0.0 Comment Author Spoofing via Incident Comment API","updatedAt":1794424131085}