{"cve":"CVE-2021-32091","nvd":{"published":"2021-05-07T05:15:08.247","modified":"2026-06-17T03:52:46.223","status":"Modified","description":"A Cross-site scripting (XSS) vulnerability exists in StackLift LocalStack 0.12.6.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://blog.sonarsource.com/hack-the-stack-with-localstack","https://portswigger.net/daily-swig/localstack-zero-day-vulnerabilities-chained-to-achieve-remote-takeover-of-local-instances","https://blog.sonarsource.com/hack-the-stack-with-localstack","https://portswigger.net/daily-swig/localstack-zero-day-vulnerabilities-chained-to-achieve-remote-takeover-of-local-instances"],"products":["localstack:localstack"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-32091","score":0.00846,"percentile":0.58061,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-37m5-42qp-4qpr","url":"https://osv.dev/vulnerability/GHSA-37m5-42qp-4qpr","summary":"Cross-site scripting in LocalStack","modified":"2024-09-30T17:00:31.437056Z","packages":[{"ecosystem":"PyPI","name":"localstack","purl":"pkg:pypi/localstack","ranges":["<=0.12.10"],"fixed":[]}]},{"id":"PYSEC-2021-102","url":"https://osv.dev/vulnerability/PYSEC-2021-102","summary":"","modified":"2023-11-08T04:05:53.004931Z","packages":[{"ecosystem":"PyPI","name":"localstack","purl":"pkg:pypi/localstack","ranges":["<0.12.6.1"],"fixed":["0.12.6.1"]}]}],"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."]}