{"id":"CVE-2026-45829","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-45829","generatedAt":"2026-10-28T05:01:43.433Z","title":"A pre-authentication, code injection vulnerability in version 1.0.0 or later of the ChromaDB Python project allows an unauthenticated attacker to run arbitrary code on the server by sending a malicious model repository and trust_remote_code set to true…","description":"A pre-authentication, code injection vulnerability in version 1.0.0 or later of the ChromaDB Python project allows an unauthenticated attacker to run arbitrary code on the server by sending a malicious model repository and trust_remote_code set to true in the /api/v2/tenants/{tenant}/databases/{db}/collections endpoint.","published":"2026-05-18T17:16:34.000Z","lastModified":"2026-10-26T13:10:00.000Z","status":"Awaiting Analysis","sourceIdentifier":"6f8de1f0-f67e-45a6-b68f-98777fdb759c","cvss":{"version":"4.0","score":10,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-94","CWE-502"],"affected":[],"epss":{"score":0.15149,"percentile":0.96725,"date":"2026-10-27","history":[{"date":"2026-09-24","score":0.01023,"percentile":0.61924},{"date":"2026-10-25","score":0.15149,"percentile":0.96718}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 15.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-25T00:00:00.000Z","detail":{"to":0.15149,"from":0.01411,"percentile":0.96718},"summary":"EPSS moved from 1.4% to 15.1% probability of exploitation in the next thirty days."}],"references":[{"url":"https://github.com/chroma-core/chroma/issues/6717","source":"6f8de1f0-f67e-45a6-b68f-98777fdb759c"},{"url":"https://www.hiddenlayer.com/research/chromatoast-served-pre-auth","source":"6f8de1f0-f67e-45a6-b68f-98777fdb759c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-45829","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479623","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45829.json","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://www.hiddenlayer.com/research/chromatoast-served-pre-auth","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45829","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}