{"cve":"CVE-2026-30887","nvd":{"published":"2026-03-10T17:40:14.887","modified":"2026-06-17T10:33:05.737","status":"Analyzed","description":"OneUptime is a solution for monitoring and managing online services. Prior to 10.0.18, OneUptime allows project members to run custom Playwright/JavaScript code via Synthetic Monitors to test websites. However, the system executes this untrusted user code inside the insecure Node.js vm module. By leveraging a standard prototype-chain escape (this.constructor.constructor), an attacker can bypass the sandbox, gain access to the underlying Node.js process object, and execute arbitrary system commands (RCE) on the oneuptime-probe container. Furthermore, because the probe holds database/cluster credentials in its environment variables, this directly leads to a complete cluster compromise. This vulnerability is fixed in 10.0.18.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":9.9},"cwes":["CWE-94"],"references":["https://github.com/OneUptime/oneuptime/security/advisories/GHSA-h343-gg57-2q67","https://github.com/OneUptime/oneuptime/security/advisories/GHSA-h343-gg57-2q67"],"products":["hackerbay:oneuptime"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-30887","score":0.00411,"percentile":0.35412,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-h343-gg57-2q67","url":"https://osv.dev/vulnerability/GHSA-h343-gg57-2q67","summary":"OneUpTime's Unsandboxed Code Execution in Probe Allows Any Project Member to Achieve RCE","modified":"2026-03-10T18:48:41.920055Z","packages":[{"ecosystem":"npm","name":"@oneuptime/common","purl":"pkg:npm/%40oneuptime/common","ranges":["<10.0.18"],"fixed":["10.0.18"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}