{"id":"CVE-2024-32980","aliases":["GHSA-f3h7-gpjj-wcvh"],"url":"https://o3.security/vulnerability/CVE-2024-32980","summary":"Spin contains a potential network sandbox escape for specifically configured Spin applications","details":"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.","published":"2024-05-08T14:32:09.059Z","modified":"2026-08-08T03:48:04.286646197Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"spin-sdk","fixedVersion":"2.4.3"}],"fix":{"url":"https://github.com/fermyon/spin/commit/b3db535c9edb72278d4db3a201f0ed214e561354","label":"fermyon/spin@b3db535"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/32xxx/CVE-2024-32980.json"},{"type":"ADVISORY","url":"https://github.com/fermyon/spin/security/advisories/GHSA-f3h7-gpjj-wcvh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-32980"},{"type":"FIX","url":"https://github.com/fermyon/spin/commit/b3db535c9edb72278d4db3a201f0ed214e561354"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:48:04.286646197Z"}}