{"id":"CVE-2026-52856","summary":"Wings: Maliciously crafted packet during SFTP connection handshake causes denial of service","details":"Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to 1.13.0, a malformed packet received during the SFTP connection handshake causes a Go panic. This issue is fixed in version 1.13.0.","aliases":["GHSA-ghrq-5wpp-hxx5"],"modified":"2026-08-02T03:47:49.054543428Z","published":"2026-07-31T16:20:31.222Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52856.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-129","CWE-248","CWE-617","CWE-755"]},"references":[{"type":"WEB","url":"https://github.com/pterodactyl/wings/releases/tag/v1.13.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52856.json"},{"type":"ADVISORY","url":"https://github.com/pterodactyl/wings/security/advisories/GHSA-ghrq-5wpp-hxx5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52856"},{"type":"FIX","url":"https://github.com/pterodactyl/wings/commit/8e49c7c0eda815d3ada171831876a1c14c493026"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pterodactyl/wings","events":[{"introduced":"0"},{"fixed":"8e49c7c0eda815d3ada171831876a1c14c493026"},{"fixed":"6a7fc51a2361d83cad994f659a0fa6c458a33bd5"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.13.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.12.3","v1.12.2","v1.12.1","v1.12.0","v1.11.13","v1.11.12","v1.11.11","v1.11.10","v1.11.9","v1.11.8","v1.11.7","v1.11.6","v1.11.5","v1.11.4","v1.11.3","v1.7.2","v1.11.2","v1.11.1","v1.11.0","v1.11.0-rc.2","v1.11.0-rc.1","v1.7.1","v1.7.0","v1.6.4","v1.6.3","v1.6.2","v1.6.1","v1.6.0","v1.5.6","v1.5.5","v1.5.4","v1.5.3","v1.5.2","v1.5.1","v1.5.0","v1.4.7","v1.4.6","v1.4.5","v1.4.4","v1.4.3","v1.4.2","v1.4.1","v1.4.0","v1.3.2","v1.3.1","v1.3.0","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.1","v1.0.0","v1.0.0-rc.7","v1.0.0-rc.6","v1.0.0-rc.5","v1.0.0-rc.4","v1.0.0-rc.3","v1.0.0-rc.2","v1.0.0-rc.1","v1.0.0-beta.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52856.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}