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MEDIUM severity

Wings: Maliciously or erroneously created parsed config files can cause wings process to OOMGHSA-q6hh-gp44-4hcm

MEDIUMFix: pterodactyl/wings@5f71f65

GHSA-q6hh-gp44-4hcm is a medium-severity (CVSS 5.5) Uncontrolled Resource Consumption vulnerability in github.com/pterodactyl/wings. A fix is available for github.com/pterodactyl/wings — see the affected versions and patch details below.

Also known asCVE-2026-52857GO-2026-6159
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 28, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-q6hh-gp44-4hcm.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs5th percentile — riskier than 5% of all scored CVEsHighest risk
0.00%0.22%0.44%0.66%0.1%0.1%0.2%0.2%Aug 26Oct 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-q6hh-gp44-4hcm by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 398,142 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🐹github.com/pterodactyl/wings

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/pterodactyl/wingsall versions1.13.0go get github.com/pterodactyl/wings@v1.13.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/pterodactyl/wings, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/pterodactyl/wings to 1.13.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-q6hh-gp44-4hcm is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

### Summary Config file parsers, `json`, `yaml`, `xml` etc in parser.go have no file size limit/checks, allowing for a giant config file to potentially OOM the wings process. ### Impact All wings users who have an egg with a non-`file` parser configuration file setting.
O3 Security · Impact-Aware SCA

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Wings: Maliciously or erroneously created parsed config…