{"id":"CVE-2026-126772","state":"PUBLISHED","title":"OpsTree REMS through 1.0.0 Comment Author Spoofing via Incident Comment API","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.","publishedAt":"2026-11-11T18:11:17.898Z","updatedAt":"2026-11-13T00:00:12.534Z","severity":{"score":5.3,"label":"Medium","version":"4.0","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","source":"VulnCheck"},"assigner":"VulnCheck","products":["OpsTree Solutions REMS"],"affected":[{"vendor":"OpsTree Solutions","product":"REMS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.0.0","versionType":"custom"}]}],"references":["https://gist.github.com/neelkotnis/5a5c810e16a3f242f336198b32213629","https://opstree.com/rems-ai-powered-observability/","https://www.vulncheck.com/advisories/opstree-rems-through-1.0.0-comment-author-spoofing-via-incident-comment-api"],"weaknesses":["CWE-863"],"ingestedAt":"2026-11-13T00:04:07.093Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/126xxx/CVE-2026-126772.json","commit":"b11ebad141cb1342d2d59e57e49d50b8dd082cf9","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-126772","state":"PUBLISHED","datePublished":"2026-11-11T18:11:17.898Z","dateUpdated":"2026-11-13T00:00:12.534Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-11-11T18:05:56.862Z"},"containers":{"cna":{"title":"OpsTree REMS through 1.0.0 Comment Author Spoofing via Incident Comment API","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"OpsTree Solutions","product":"REMS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.0.0","versionType":"custom"}]}],"references":[{"url":"https://gist.github.com/neelkotnis/5a5c810e16a3f242f336198b32213629","tags":["technical-description","exploit"]},{"url":"https://opstree.com/rems-ai-powered-observability/","tags":["product"],"name":"REMS by OpsTree Product Page"},{"url":"https://www.vulncheck.com/advisories/opstree-rems-through-1.0.0-comment-author-spoofing-via-incident-comment-api","name":"VulnCheck Advisory: OpsTree REMS through 1.0.0 Comment Author Spoofing via Incident Comment API","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-11-11T18:11:17.898Z"},"datePublic":"2026-09-20T00:00:00.000Z","credits":[{"lang":"en","value":"Neel Saurabh Kotnis","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-12T23:59:56.557559Z","id":"CVE-2026-126772","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-11-13T00:00:12.534Z"}}]}}}