CVE-2026-61617Public exploitNetwork attack vectorHinoki check available

Node-wide service interruption via unbounded SFTP writes

Published Aug 26, 2026 · Updated Aug 27, 2026

Uncontrolled resource consumption in Pterodactyl Wings 1.13.2 and earlier allows remote authenticated users to exhaust a host disk via SFTP. Filewrite checks only stale cached usage when opening a handle, then returns a raw WriterAt that performs no per-write quota check or accounting. Any tenant with SFTP write access to one quota-limited server can fill the node disk, interrupting every hosted server and Wings operations.

CVSS severity7.7
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Uncontrolled resource consumption in Pterodactyl Wings 1.13.2 and earlier allows remote authenticated users to exhaust a host disk via SFTP. Filewrite checks only stale cached usage when opening a handle, then returns a raw WriterAt that performs no per-write quota check or accounting. Any tenant with SFTP write access to one quota-limited server can fill the node disk, interrupting every hosted server and Wings operations.

The record

CVE
CVE-2026-61617
Published
Aug 26, 2026
Updated
Aug 27, 2026
Vendor
Pterodactyl
Product
Wings
Classifications
CWE-400, CWE-770, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.13.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Pterodactyl · Wingsversion=< 1.13.3

Published CVSS scores

7.7GitHub CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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