{"affected":[{"defaultStatus":"unaffected","product":"REMS","source":"CNA: VulnCheck","vendor":"OpsTree Solutions","versions":[{"lessThanOrEqual":"1.0.0","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-126767","cwes":["CWE-1427"],"description":"OpsTree REMS through 1.0.0 contains a prompt injection vulnerability that allows authenticated users to disclose the hidden system prompt by submitting crafted chat input to POST /api/v1/rca/chat. Attackers can instruct the assistant to ignore its rules and reveal internal orchestration instructions, aiding the crafting of further prompt injection attacks.","epss":null,"exploits":[{"kind":"exploit","source":"CNA: VulnCheck","url":"https://gist.github.com/neelkotnis/548bfde3e45bc3793f3f26e1f9a43efe"}],"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:L/VI:N/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:L/I:N/A:N","version":"3.1"}],"modifiedAt":1794420674745,"publishedAt":1794420674745,"references":[{"source":"CNA: VulnCheck","tags":["technical-description","exploit"],"url":"https://gist.github.com/neelkotnis/548bfde3e45bc3793f3f26e1f9a43efe"},{"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-prompt-injection-via-rca-chat-assistant"}],"remediation":[],"revision":"7550f0797e37b47592412664fe93fa90345abca4bcc23f8287ece5be6b16ebf7","sources":[{"modifiedAt":1794420674745,"name":"CNA: VulnCheck","retrievedAt":1794424125286,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126767"}],"ssvc":null,"status":"published","title":"OpsTree REMS through 1.0.0 Prompt Injection via RCA Chat Assistant","updatedAt":1794424125286}