{"id":"CVE-2025-59348","aliases":["GHSA-2qgr-gfvj-qpcr","GO-2025-3963"],"url":"https://o3.security/vulnerability/CVE-2025-59348","summary":"Dragonfly incorrectly handles a task structure’s usedTraffic field","details":"Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the processPieceFromSource method does not update the structure’s usedTraffic field, because an uninitialized variable n is used as a guard to the AddTraffic method call, instead of the result.Size variable. A task is processed by a peer. The usedTraffic metadata is not updated during the processing. Rate limiting is incorrectly applied, leading to a denial-of-service condition for the peer. This vulnerability is fixed in 2.1.0.","published":"2025-09-17T19:30:22.841Z","modified":"2026-07-31T18:30:50.712809706Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/dragonflyoss/dragonfly","fixedVersion":"2.1.0"},{"ecosystem":"Go","name":"d7y.io/dragonfly/v2","fixedVersion":"2.1.0"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59348.json"},{"type":"ADVISORY","url":"https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-2qgr-gfvj-qpcr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59348"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:50.712809706Z"}}