{"id":"CVE-2021-32091","aliases":["GHSA-37m5-42qp-4qpr","PYSEC-2021-102"],"url":"https://o3.security/vulnerability/CVE-2021-32091","summary":"Cross-site scripting in LocalStack","details":"A Cross-site scripting (XSS) vulnerability exists in StackLift LocalStack 0.12.6.","published":"2021-05-07T05:15:08.247Z","modified":"2026-07-09T06:35:12.488333Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"PyPI","name":"localstack","fixedVersion":null}],"fix":null,"references":[{"type":"EVIDENCE","url":"https://blog.sonarsource.com/hack-the-stack-with-localstack"},{"type":"EVIDENCE","url":"https://portswigger.net/daily-swig/localstack-zero-day-vulnerabilities-chained-to-achieve-remote-takeover-of-local-instances"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T06:35:12.488333Z"}}