Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-61617— Pterodactyl Wings SFTP write path does not enforce disk quota, allowing node-wide disk exhaustion

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组织开源的一个服务器控制界面。 Pterodactyl Wings 1.13.2及之前版本存在安全漏洞，该漏洞源于SFTP写入路径未正确执行磁盘配额限制，可能导致具有SFTP写入权限的租户无限写入数据，耗尽主机节点的物理磁盘，造成拒绝服务。

CVSS 7.7 · High EPSS 0.44% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
pterodactyl wings < 1.13.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-61617

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Pterodactyl Wings SFTP write path does not enforce disk quota, allowing node-wide disk exhaustion
Source: CVE Program / CVE List V5
Vulnerability Description
Wings is the server control plane for the Pterodactyl game-server management panel. In versions up to and including 1.13.2, the SFTP write path does not enforce a server's disk quota during a transfer, allowing a tenant with SFTP write access to a single server to exhaust the host node's physical disk and take down every server on it. Wings checks available space only once, as a boolean, when the write handle is opened, using a stale cached usage value and without knowing the size of the incoming data, and it then returns a raw, unaccounted file handle that is never re-checked as the transfer proceeds. A single upload can therefore be written without bound, far beyond the configured disk limit, until the node's disk is full, and because a server stopped for exceeding its limit is not treated as suspended, SFTP writes are still accepted even after the quota is already exceeded. This issue is fixed in version 1.13.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
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组织开源的一个服务器控制界面。 Pterodactyl Wings 1.13.2及之前版本存在安全漏洞，该漏洞源于SFTP写入路径未正确执行磁盘配额限制，可能导致具有SFTP写入权限的租户无限写入数据，耗尽主机节点的物理磁盘，造成拒绝服务。
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 < 1.13.3 -

II. Public POCs for CVE-2026-61617

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-61617

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-61617 (1)

Vendor Advisories for CVE-2026-61617 (1)

IV. Related Vulnerabilities

Same product: wings
Same vendor: pterodactyl
Same weakness: CWE-770

V. Comments for CVE-2026-61617

No comments yet

Leave a comment