Unbounded Configuration File Parsing in Pterodactyl's Wings Management Panel
CVE-2026-52857

5.5MEDIUM

Key Information:

Vendor

Pterodactyl

Status
Wings
Vendor
CVE Published:
31 July 2026

What is CVE-2026-52857?

Wings, the server control plane for Pterodactyl, has a vulnerability in its configuration file parsing mechanism that allows excessively large non-file parser configurations to be processed. Prior to version 1.13.0, this flaw could lead to memory exhaustion of the Wings process, potentially degrading server performance or causing crashes. It is essential for users to upgrade to version 1.13.0 or later to mitigate this risk.

Affected Version(s)

wings < 1.13.0

References

https://github.com/pterodactyl/wings/security/advisories/...
x_refsource_CONFIRM
https://github.com/pterodactyl/wings/commit/5f71f65711b6b...
x_refsource_MISC
https://github.com/pterodactyl/wings/releases/tag/v1.13.0
x_refsource_MISC

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.