Vulnerability in github.com/pterodactyl/wings (CVE-2026-52857)
Summary
Vulnerability in github.com/pterodactyl/wings (CVE-2026-52857). Risk of unauthorized operations or information disclosure. Exploitable via json. Mitigation: upgrade to 1.13.0 or later.
Original description
The description as published by the source.
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.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-52857 has been found in github.com/pterodactyl/wings.
Attackers can target a specific entry point like json over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 5.5/10.
What to do: upgrade github.com/pterodactyl/wings to 1.13.0 or later.
If unsure, ask your IT team or search "github.com/pterodactyl/wings CVE-2026-52857" on the vendor's site.
CVE-2026-52857 (github.com/pterodactyl/wings) — CWE-400 / CVSS v3 5.5
Attack vector: local / no user interaction
Attack surface: json / yaml / xml / file
Patched: 1.13.0 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-400) exists in github.com/pterodactyl/wings. Attackers reach the vulnerable code path via json.
Check the vendor advisory for the affected versions of github.com/pterodactyl/wings. Attack surface: json / yaml / xml / file.
Severity: Medium (CVSS 5.5/10). Risk of unauthorized operations or information disclosure.
Update to 1.13.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/pterodactyl/wings' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'github.com/pterodactyl/wings' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
github.com/pterodactyl/wingsを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade github.com/pterodactyl/wings to 1.13.0ステージング環境で 1.13.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- package github.com
- web github.com
- web github.com
- web github.com
- web github.com