Vulnerability-Lookup

GHSA-HGV4-PRQ7-C9MX

Vulnerability from github – Published: 2026-06-30 21:31 – Updated: 2026-06-30 21:31

Details

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes in WebSphere eXtreme Scale's ogclient.jar call ORB.string_to_object() on an attacker-controlled IOR string during Java deserialization, turning any unfiltered ObjectInputStream sink in WAS into outbound IIOP SSRF to an attacker-chosen host; when chained with the IBM ORB's getUserException class-instantiation flaw (WAS-26), this SSRF escalates to remote code execution on the calling JVM.

Severity

6.0 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-13773"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-30T20:17:29Z",
    "severity": "MODERATE"
  },
  "details": "IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes in WebSphere eXtreme Scale\u0027s ogclient.jar call ORB.string_to_object() on an attacker-controlled IOR string during Java deserialization, turning any unfiltered ObjectInputStream sink in WAS into outbound IIOP SSRF to an attacker-chosen host; when chained with the IBM ORB\u0027s getUserException class-instantiation flaw (WAS-26), this SSRF escalates to remote code execution on the calling JVM.",
  "id": "GHSA-hgv4-prq7-c9mx",
  "modified": "2026-06-30T21:31:44Z",
  "published": "2026-06-30T21:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13773"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7278594"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-13773 (GCVE-0-2026-13773)

Vulnerability from cvelistv5 – Published: 2026-06-30 19:20 – Updated: 2026-06-30 19:37

Title

IBM WebSphere eXtreme Scale is affected by server side request forgery when ORB is used as Transport Protocol

Summary

Severity

6 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-30 19:37 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

ibm mitre root

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7278594	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version
IBM	WebSphere Extreme Scale	Affected: 8.6.1.0 , ≤ 8.6.1.6 (semver) cpe:2.3:a:ibm:websphere_extreme_scale:8.6.1.0:::::::* cpe:2.3:a:ibm:websphere_extreme_scale:8.6.1.6:::::::*

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  "containers": {
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-13773",
                "options": [
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                  },
                  {
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-30T19:37:43.519923Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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          ],
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        }
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    "dateReserved": "2026-06-29T21:52:34.923Z",
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  "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.