CVE-2026-21696
Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Starting in version 1.7.0 and prior to version 1.12.0, Wings does not consider SQLite max parameter limit when processing activity log entries allowing for low privileged user to trigger a condition that floods the panel with activity records. After Wings sends activity logs to the panel it deletes the processed activity entries from the wings SQLite database. However, it does not consider the max parameter limit of SQLite, 32766 as of SQLite 3.32.0. If wings attempts to delete more than 32766 entries from the SQLite database in one query, it triggers an error (SQL logic error: too many SQL variables (1)) and does not remove any entries from the database. These entries are then indefinitely re-processed and resent to the panel each time the cron runs. By successfully exploiting this vulnerability, an attacker can trigger a situation where wings will keep uploading the same activity data to the panel repeatedly (growing each time to include new activity) until the panels' database server runs out of disk space. Version 1.12.0 fixes the issue.
EPSS 0.08% · 23.5th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| pterodactyl | wings | >= 1.7.0, < 1.12.0, 1.7.0, * |
| github.com | pterodactyl/wings | 1.7.0, 1.7.0 |
Timeline
- Jan 19, 2026 CVE Published
- Jan 19, 2026 PoC Published
- Jan 20, 2026 EPSS Score
- Jan 23, 2026 EPSS Score
- Jan 26, 2026 EPSS Score
- Jan 28, 2026 EPSS Score
- Jan 30, 2026 Security Advisory
- Jan 31, 2026 EPSS Score
- Feb 2, 2026 CVE Updated
- Feb 3, 2026 EPSS Score
- Feb 6, 2026 EPSS Score
- Feb 8, 2026 EPSS Score
References
- https://github.com/pterodactyl/wings/security/advisories/GHSA-2497-gp99-2m74 url
- https://github.com/pterodactyl/wings/blob/9ffbcdcdb1163da823cf9959b9602df9f7dcb54a/internal/cron/activity_cron.go#L81 url
- https://github.com/pterodactyl/wings/blob/9ffbcdcdb1163da823cf9959b9602df9f7dcb54a/internal/cron/sftp_cron.go#L86 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-21696 advisory
- https://github.com/pterodactyl/panel/commit/09caa0d4995bd924b53b9a9e9b4883ac27bd5607 url
- https://github.com/pterodactyl/panel/releases/tag/v1.12.0 url
- https://github.com/pterodactyl/wings package