CVE-2026-52856: Wings: Maliciously crafted packet during SFTP connection handshake causes denial of service

July 31, 2026

A maliciously crafted packet received & parsed during the SFTP connection handshake will cause a Go panic.

References

github.com/advisories/GHSA-ghrq-5wpp-hxx5
github.com/pterodactyl/wings/commit/8e49c7c0eda815d3ada171831876a1c14c493026
github.com/pterodactyl/wings/releases/tag/v1.13.0
github.com/pterodactyl/wings/security/advisories/GHSA-ghrq-5wpp-hxx5
nvd.nist.gov/vuln/detail/CVE-2026-52856

Code Behaviors & Features

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