Vulnerability-Lookup

GHSA-PFVC-3P5H-X7H6

Vulnerability from github – Published: 2026-07-31 16:16 – Updated: 2026-07-31 16:16

Summary

Wings exposes node configuration secrets through egg configuration-file templating

Details

Impact

Type: Exposure of sensitive information / insufficiently protected credentials leading to privilege escalation and full node compromise.

Wings exposes its entire daemon configuration to the egg configuration-file templating engine. When Wings renders a server's configuration files, any {{config.<path>}} placeholder in a replacement value is resolved against the full marshalled daemon configuration, with no restriction on which paths may be read.

Because the Panel substitutes user-controlled egg variable values into these replacements before sending them to Wings, a low-privileged user can smuggle a {{config.*}} placeholder through a variable value. The placeholder is then resolved by Wings and written into a file inside the user's own server, where it can be read via the file manager or SFTP.

This allows reading, among other values:

{{config.token}} - the node's daemon token, which is both the API bearer for the Panel⇆Wings channel and the HMAC signing key for every JWT the node issues;
{{config.token_id}};
{{config.docker.registries}} - configured container-registry credentials.

Who is impacted: Any deployment where a user who is not fully trusted can set an egg variable value (e.g. a server owner or a subuser with the startup.update permission) and the server's egg renders a user-editable variable into a configuration file via {{server.build.env.*}}. This pattern is common across stock and community eggs, so most multi-tenant / shared-hosting deployments are affected.

Resulting impact: Disclosure of the node daemon token lets the attacker forge authentication tokens and act against every server on that node, a full-node compromise reachable from a low-privileged account.

Patches

Yes. Fixed in Wings v1.12.3 (Panel is unaffected; the fix is Wings-only).

Wings no longer exposes its full configuration to the templating engine only an explicit, non-secret subset (the Docker network interface) can be resolved by {{config.*}} placeholders.

Users should upgrade Wings to v1.12.3 or later.

After upgrading, rotate the affected nodes' daemon tokens, since a previously exfiltrated token remains valid until rotated (Admin → Nodes → Configuration → reset the token, then re-deploy config.yml to the node).

Workarounds

For operators who cannot upgrade immediately:

Audit your eggs and ensure no user-editable variable is rendered into a configuration file, or mark such variables non-editable.

These reduce exposure but are not a complete fix; upgrading Wings is the recommended action.

Severity

9.9 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/pterodactyl/wings"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.12.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-52855"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-522"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-31T16:16:46Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\n**Type:** Exposure of sensitive information / insufficiently protected credentials\nleading to privilege escalation and full node compromise.\n\nWings exposes its **entire** daemon configuration to the egg configuration-file\ntemplating engine. When Wings renders a server\u0027s configuration files, any\n`{{config.\u003cpath\u003e}}` placeholder in a replacement value is resolved against the\nfull marshalled daemon configuration, with no restriction on which paths may be\nread.\n\nBecause the Panel substitutes **user-controlled** egg variable values into these\nreplacements before sending them to Wings, a low-privileged user can smuggle a\n`{{config.*}}` placeholder through a variable value. The placeholder is then\nresolved by Wings and written into a file inside the user\u0027s own server, where it\ncan be read via the file manager or SFTP.\n\nThis allows reading, among other values:\n\n- `{{config.token}}` - the node\u0027s daemon token, which is both the API bearer for\n\u00a0\u00a0the Panel\u21c6Wings channel **and** the HMAC signing key for every JWT the node\n\u00a0\u00a0issues;\n- `{{config.token_id}}`;\n- `{{config.docker.registries}}` - configured container-registry credentials.\n\n**Who is impacted:** Any deployment where a user who is not fully trusted can set\nan egg variable value (e.g. a server owner or a subuser with the `startup.update`\npermission) **and** the server\u0027s egg renders a user-editable variable into a\nconfiguration file via `{{server.build.env.*}}`. This pattern is common across\nstock and community eggs, so most multi-tenant / shared-hosting deployments are\naffected.\n\n**Resulting impact:** Disclosure of the node daemon token lets the attacker forge\nauthentication tokens and act against **every server on that node**, a full-node compromise reachable from a low-privileged\naccount.\n\n### Patches\n\nYes. Fixed in **Wings `v1.12.3`** (Panel is unaffected; the fix is Wings-only).\n\nWings no longer exposes its full configuration to the templating engine only an\nexplicit, non-secret subset (the Docker network interface) can be resolved by\n`{{config.*}}` placeholders.\n\nUsers should upgrade Wings to `v1.12.3` or later.\n\n**After upgrading, rotate the affected nodes\u0027 daemon tokens**, since a previously\nexfiltrated token remains valid until rotated (Admin \u2192 Nodes \u2192 Configuration \u2192\nreset the token, then re-deploy `config.yml` to the node).\n\n### Workarounds\n\nFor operators who cannot upgrade immediately:\n\n- Audit your eggs and ensure no **user-editable** variable is rendered into a\n\u00a0\u00a0configuration file, or mark such variables non-editable.\n\nThese reduce exposure but are not a complete fix; upgrading Wings is the\nrecommended action.",
  "id": "GHSA-pfvc-3p5h-x7h6",
  "modified": "2026-07-31T16:16:46Z",
  "published": "2026-07-31T16:16:46Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pterodactyl/wings/security/advisories/GHSA-pfvc-3p5h-x7h6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pterodactyl/wings/commit/eb65e27ae077a63e38518c490768486af1cd86a9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pterodactyl/wings"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pterodactyl/wings/releases/tag/v1.12.3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Wings exposes node configuration secrets through egg configuration-file templating"
}

CVE-2026-52855 (GCVE-0-2026-52855)

Vulnerability from cvelistv5 – Published: 2026-07-31 16:16 – Updated: 2026-07-31 19:55

Title

Wings exposes node configuration secrets through egg configuration-file templating

Summary

Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to 1.12.3, {{config.}} placeholders in egg configuration-file templates allow a low-privileged user to read {{config.token}}, {{config.token_id}}, and {{config.docker.registries}} from the full daemon configuration. This issue is fixed in version 1.12.3.

Severity

9.9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-522 - Insufficiently Protected Credentials

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/pterodactyl/wings/security/adv…	x_refsource_CONFIRM
https://github.com/pterodactyl/wings/commit/eb65e…	x_refsource_MISC
https://github.com/pterodactyl/wings/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
pterodactyl	wings	Affected: < 1.12.3

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-52855",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-31T19:55:26.855919Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-31T19:55:37.770Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "wings",
          "vendor": "pterodactyl",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.12.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to 1.12.3, {{config.}} placeholders in egg configuration-file templates allow a low-privileged user to read {{config.token}}, {{config.token_id}}, and {{config.docker.registries}} from the full daemon configuration. This issue is fixed in version 1.12.3."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-522",
              "description": "CWE-522: Insufficiently Protected Credentials",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-31T16:16:42.470Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pterodactyl/wings/security/advisories/GHSA-pfvc-3p5h-x7h6",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pterodactyl/wings/security/advisories/GHSA-pfvc-3p5h-x7h6"
        },
        {
          "name": "https://github.com/pterodactyl/wings/commit/eb65e27ae077a63e38518c490768486af1cd86a9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pterodactyl/wings/commit/eb65e27ae077a63e38518c490768486af1cd86a9"
        },
        {
          "name": "https://github.com/pterodactyl/wings/releases/tag/v1.12.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pterodactyl/wings/releases/tag/v1.12.3"
        }
      ],
      "source": {
        "advisory": "GHSA-pfvc-3p5h-x7h6",
        "discovery": "UNKNOWN"
      },
      "title": "Wings exposes node configuration secrets through egg configuration-file templating"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-52855",
    "datePublished": "2026-07-31T16:16:42.470Z",
    "dateReserved": "2026-06-08T18:41:27.724Z",
    "dateUpdated": "2026-07-31T19:55:37.770Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

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