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CVE-2026-52857— Wings: Maliciously or erroneously created parsed config files can cause wings process to OOM

Quick assessment

Affected
pterodactyl wings
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Pterodactyl Wings是Pterodactyl团队开源的一个服务器控制界面。 Pterodactyl Wings 1.13.0之前版本存在资源管理错误漏洞，该漏洞源于parser.go中的json、yaml和xml配置文件解析器无界，可能处理过大的非文件解析器配置文件，导致进程内存耗尽。

CVSS 5.5 · Medium EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
pterodactyl wings < 1.13.0 affected
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I. Basic Information for CVE-2026-52857

Vulnerability Information
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Vulnerability Title
Wings: Maliciously or erroneously created parsed config files can cause wings process to OOM
Source: CVE Program / CVE List V5
Vulnerability Description
Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to 1.13.0, unbounded json, yaml, and xml configuration-file parsers in parser.go can process an oversized non-file parser configuration file and exhaust Wings process memory. This issue is fixed in version 1.13.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Pterodactyl Wings 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pterodactyl Wings是Pterodactyl团队开源的一个服务器控制界面。 Pterodactyl Wings 1.13.0之前版本存在资源管理错误漏洞，该漏洞源于parser.go中的json、yaml和xml配置文件解析器无界，可能处理过大的非文件解析器配置文件，导致进程内存耗尽。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pterodactyl wings < 1.13.0 -

II. Public POCs for CVE-2026-52857

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III. Intelligence Information for CVE-2026-52857

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Patches & Fixes for CVE-2026-52857 (1)

Vendor Advisories for CVE-2026-52857 (1)

Vendor Pages for CVE-2026-52857 (1)

Same Patch Batch · pterodactyl · 2026-07-31 · 3 CVEs total

CVE-2026-52855 9.9 CRITICAL Wings exposes node configuration secrets through egg configuration-file templating
CVE-2026-52856 7.5 HIGH Wings: Maliciously crafted packet during SFTP connection handshake causes denial of servic

IV. Related Vulnerabilities

Same product: wings
Same vendor: pterodactyl
Same weakness: CWE-400