{"id":"CVE-2026-101861","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101861","generatedAt":"2026-10-28T01:49:00.839Z","title":"Langflow 1.0.16 before 1.12.0 and 0.0.94 before 1.12.0 contain an unsafe eval() vulnerability in schema.py that allows authenticated attackers to achieve code execution by placing a Python object with a malicious __repr__ method into component input…","description":"Langflow 1.0.16 before 1.12.0 and 0.0.94 before 1.12.0 contain an unsafe eval() vulnerability in schema.py that allows authenticated attackers to achieve code execution by placing a Python object with a malicious __repr__ method into component input options lists. The eval() sink is triggered when a component is converted into a LangChain tool via ComponentToolkit.get_tools(), including during custom component saves through the API, by interpolating options into a Literal type string that is passed directly to eval() without safe evaluation controls.","published":"2026-09-28T16:17:13.000Z","lastModified":"2026-09-30T21:16:55.000Z","status":"Awaiting Analysis","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":2.1,"severity":"LOW","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/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-95"],"affected":[],"epss":{"score":0.00197,"percentile":0.09272,"date":"2026-10-26","history":[{"date":"2026-09-29","score":0.00197,"percentile":0.08387}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-28T16:17:13.000Z","detail":{"score":"2.1","severity":"LOW","publishedAt":"2026-09-28T16:17:13.157Z"},"summary":"New CVE, low severity (CVSS 2.1)."}],"references":[{"url":"https://github.com/langflow-ai/langflow/releases#release-v1.12.0","source":"disclosure@vulncheck.com"},{"url":"https://github.com/langflow-ai/langflow/security/advisories/GHSA-33p4-w7j3-33mw","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101861","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."}