{"id":"CVE-2026-111057","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111057","generatedAt":"2026-10-28T11:33:16.828Z","title":"From 3.0.0 until 3.2.4, a missing comma in BLOCKED_PATTERNS concatenates the /lab and /api/terminals regular-expression literals.","description":"Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.4, a missing comma in BLOCKED_PATTERNS concatenates the /lab and /api/terminals regular-expression literals. Requests to /api/terminals therefore bypass the anonymous endpoint blocklist and reach Jupyter Server's terminal API. An unauthenticated attacker can use the resulting interactive operating-system shell to execute commands and access data available to the Mercury process. This issue is fixed in version 3.2.4.","published":"2026-10-19T16:17:04.000Z","lastModified":"2026-10-19T21:14:14.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":10,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-185","CWE-284"],"affected":[],"epss":{"score":0.00443,"percentile":0.38311,"date":"2026-10-27","history":[{"date":"2026-10-20","score":0.00443,"percentile":0.37177}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-19T16:17:04.000Z","detail":{"score":"10.0","severity":"CRITICAL","publishedAt":"2026-10-19T16:17:03.810Z"},"summary":"New CVE, critical severity (CVSS 10.0)."}],"references":[{"url":"https://github.com/mljar/mercury/commit/8c467129037ee9df269d543ac217ffd33b97bf3f","source":"security-advisories@github.com"},{"url":"https://github.com/mljar/mercury/releases/tag/v3.2.4","source":"security-advisories@github.com"},{"url":"https://github.com/mljar/mercury/security/advisories/GHSA-f8c7-rwf9-fmgm","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111057","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."}