Vulnerability-Lookup

GHSA-MX5J-MP4F-G8JG

Vulnerability from github – Published: 2026-07-31 19:38 – Updated: 2026-07-31 19:38

Summary

Savon::Model evaluates WSDL operation names as Ruby source

Details

Impact

Savon::Model generated SOAP operation methods by interpolating operation names into Ruby source passed to module_eval. An attacker who can control the operation names of a WSDL, can inject Ruby code that executes in the application process. This affects only the .all_operations class method provided by Savon::Model to automatically register all operations provided by the WSDL. Configuring Savon::Model with trusted operation names via .operations is safe.

Patches

Patched in Savon 2.17.2.

Users should upgrade to 2.17.2 or later.

Workarounds

Avoid .all_operations for untrusted WSDL documents. Use .operations with trusted operation names instead.

Severity

8.1 (High)


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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "savon"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.9.8"
            },
            {
              "fixed": "2.17.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-53510"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-31T19:38:25Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\n\n`Savon::Model` generated SOAP operation methods by interpolating operation names into Ruby source passed to `module_eval`. An attacker who can control the operation names of a WSDL, can inject Ruby code that executes in the application process. This affects only the `.all_operations` class method provided by `Savon::Model` to automatically register all operations provided by the WSDL. Configuring `Savon::Model` with trusted operation names via `.operations` is safe.\n\n### Patches\n\nPatched in Savon 2.17.2.\n\nUsers should upgrade to 2.17.2 or later.\n\n### Workarounds\n\nAvoid `.all_operations` for untrusted WSDL documents. Use `.operations` with trusted operation names instead.",
  "id": "GHSA-mx5j-mp4f-g8jg",
  "modified": "2026-07-31T19:38:25Z",
  "published": "2026-07-31T19:38:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/savonrb/savon/security/advisories/GHSA-mx5j-mp4f-g8jg"
    },
    {
      "type": "WEB",
      "url": "https://github.com/savonrb/savon/commit/8f22eb543e7436f6247172c9be47e22792d375e9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/savon/CVE-2026-53510.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/savonrb/savon"
    },
    {
      "type": "WEB",
      "url": "https://github.com/savonrb/savon/releases/tag/v2.17.2"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord/SearchResults?query=CVE-2026-53510"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Savon::Model evaluates WSDL operation names as Ruby source"
}

CVE-2026-53510 (GCVE-0-2026-53510)

Vulnerability from cvelistv5 – Published: 2026-07-31 19:38 – Updated: 2026-07-31 20:04

Title

Savon::Model evaluates WSDL operation names as Ruby source

Summary

Savon is a Ruby SOAP client. From 0.9.8 until 2.17.2, Savon::Model .all_operations interpolates attacker-controlled WSDL operation names into Ruby source passed to module_eval, allowing Ruby code execution in the application process. This issue is fixed in version 2.17.2.

Severity

8.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-31 20:04 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/savonrb/savon/security/advisor…	x_refsource_CONFIRM
https://github.com/savonrb/savon/commit/8f22eb543…	x_refsource_MISC
https://github.com/savonrb/savon/releases/tag/v2.17.2	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
savonrb	savon	Affected: >= 0.9.8, < 2.17.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-53510",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-31T20:04:14.383083Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-31T20:04:21.069Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "savon",
          "vendor": "savonrb",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 0.9.8, \u003c 2.17.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Savon is a Ruby SOAP client. From 0.9.8 until 2.17.2, Savon::Model .all_operations interpolates attacker-controlled WSDL operation names into Ruby source passed to module_eval, allowing Ruby code execution in the application process. This issue is fixed in version 2.17.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-31T19:38:33.457Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/savonrb/savon/security/advisories/GHSA-mx5j-mp4f-g8jg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/savonrb/savon/security/advisories/GHSA-mx5j-mp4f-g8jg"
        },
        {
          "name": "https://github.com/savonrb/savon/commit/8f22eb543e7436f6247172c9be47e22792d375e9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/savonrb/savon/commit/8f22eb543e7436f6247172c9be47e22792d375e9"
        },
        {
          "name": "https://github.com/savonrb/savon/releases/tag/v2.17.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/savonrb/savon/releases/tag/v2.17.2"
        }
      ],
      "source": {
        "advisory": "GHSA-mx5j-mp4f-g8jg",
        "discovery": "UNKNOWN"
      },
      "title": "Savon::Model evaluates WSDL operation names as Ruby source"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-53510",
    "datePublished": "2026-07-31T19:38:33.457Z",
    "dateReserved": "2026-06-09T17:05:25.060Z",
    "dateUpdated": "2026-07-31T20:04:21.069Z",
    "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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.