{"cve":"CVE-2025-27520","nvd":{"published":"2025-04-04T15:15:47.927","modified":"2026-06-17T09:03:44.990","status":"Analyzed","description":"BentoML is a Python library for building online serving systems optimized for AI apps and model inference. A Remote Code Execution (RCE) vulnerability caused by insecure deserialization has been identified in the latest version (v1.4.2) of BentoML. It allows any unauthenticated user to execute arbitrary code on the server. It exists an unsafe code segment in serde.py. This vulnerability is fixed in 1.4.3.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-502"],"references":["https://github.com/bentoml/BentoML/commit/b35f4f4fcc53a8c3fe8ed9c18a013fe0a728e194","https://github.com/bentoml/BentoML/security/advisories/GHSA-33xw-247w-6hmc","https://github.com/bentoml/BentoML/security/advisories/GHSA-33xw-247w-6hmc"],"products":["bentoml:bentoml"],"source":"nvd","synced_at":"2026-10-19T22:00:57.946988208+00:00"},"epss":{"cve":"CVE-2025-27520","score":0.4062,"percentile":0.9865,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-33xw-247w-6hmc","url":"https://osv.dev/vulnerability/GHSA-33xw-247w-6hmc","summary":"BentoML Allows Remote Code Execution (RCE) via Insecure Deserialization","modified":"2026-10-27T15:30:03.554614109Z","packages":[{"ecosystem":"PyPI","name":"bentoml","purl":"pkg:pypi/bentoml","ranges":[">=1.3.4 <1.4.3"],"fixed":["1.4.3"]}]},{"id":"PYSEC-2026-294","url":"https://osv.dev/vulnerability/PYSEC-2026-294","summary":"BentoML Allows Remote Code Execution (RCE) via Insecure Deserialization","modified":"2026-07-01T20:22:49.820821Z","packages":[{"ecosystem":"PyPI","name":"bentoml","purl":"pkg:pypi/bentoml","ranges":[">=1.3.4 <1.4.3"],"fixed":["1.4.3"]}]}],"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."]}