{"cve":"CVE-2024-32980","nvd":{"published":"2024-05-08T15:15:10.530","modified":"2026-06-17T07:30:48.817","status":"Deferred","description":"Spin is the developer tool for building and running serverless applications powered by WebAssembly. Prior to 2.4.3, some specifically configured Spin applications that use `self` requests without a specified URL authority can be induced to make requests to arbitrary hosts via the `Host` HTTP header. The following conditions need to be met for an application to be vulnerable: 1. The environment Spin is deployed in routes requests to the Spin runtime based on the request URL instead of the `Host` header, and leaves the `Host` header set to its original value; 2. The Spin application's component handling the incoming request is configured with an `allow_outbound_hosts` list containing `\"self\"`; and 3. In reaction to an incoming request, the component makes an outbound request whose URL doesn't include the hostname/port. Spin 2.4.3 has been released to fix this issue.","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:N","score":9.1},"cwes":["CWE-610"],"references":["https://github.com/fermyon/spin/commit/b3db535c9edb72278d4db3a201f0ed214e561354","https://github.com/fermyon/spin/security/advisories/GHSA-f3h7-gpjj-wcvh","https://github.com/fermyon/spin/commit/b3db535c9edb72278d4db3a201f0ed214e561354","https://github.com/fermyon/spin/security/advisories/GHSA-f3h7-gpjj-wcvh"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:49:23.840078609+00:00"},"epss":{"cve":"CVE-2024-32980","score":0.00489,"percentile":0.421,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-f3h7-gpjj-wcvh","url":"https://osv.dev/vulnerability/GHSA-f3h7-gpjj-wcvh","summary":"Spin applications with specific configuration vulnerable to potential network sandbox escape","modified":"2026-09-10T03:50:00.349110315Z","packages":[{"ecosystem":"crates.io","name":"spin-sdk","purl":"pkg:cargo/spin-sdk","ranges":["<2.4.3"],"fixed":["2.4.3"]}]}],"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."]}