{"id":"CVE-2025-25194","aliases":["GHSA-7723-35v7-qcxw"],"url":"https://o3.security/vulnerability/CVE-2025-25194","summary":"Server-Side Request Forgery (SSRF) in activitypub_federation","details":"Lemmy, a link aggregator and forum for the fediverse, is vulnerable to server-side request forgery via a dependency on activitypub_federation, a framework for ActivityPub federation in Rust. This vulnerability, which is present in versions 0.6.2 and prior of activitypub_federation and versions 0.19.8 and prior of Lemmy, allows a user to bypass any predefined hardcoded URL path or security anti-Localhost mechanism and perform an arbitrary GET request to any Host, Port and URL using a Webfinger Request. As of time of publication, a fix has not been made available.","published":"2025-02-10T22:14:32.302Z","modified":"2026-08-08T03:30:49.395745267Z","cvss":{"score":4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"activitypub_federation","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25194.json"},{"type":"ADVISORY","url":"https://github.com/LemmyNet/lemmy/security/advisories/GHSA-7723-35v7-qcxw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-25194"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:30:49.395745267Z"}}