CVE-2026-9764 (GCVE-0-2026-9764)

Vulnerability from cvelistv5 – Published: 2026-11-08 18:48 – Updated: 2026-11-08 18:49
VLAI
Title
IBM Bob is vulnerable to Remote Code Execution due to improper control of workspace-defined MCP server execution
Summary
IBM Bob 1.0.4 through 2.0.1 could allow a remote attacker to inject arbitrary code on the system, due to the improper control of user input code.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
ibm CNA under the mitre root
CNA scorecard B 88/100 over 1630 records in the last 180 days details
References
URL Tags
https://www.ibm.com/support/pages/node/7291535 vendor-advisorypatch
Impacted products
Vendor Product Version CPE status
IBM Bob Shell Affected: 1.0.4 , ≤ 2.0.1 (semver)
    cpe:2.3:a:ibm:bob:1.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:bob:2.0.1:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:bob:1.0.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:bob:2.0.1:*:*:*:*:*:*:*"
          ],
          "product": "Bob Shell",
          "vendor": "IBM",
          "versions": [
            {
              "lessThanOrEqual": "2.0.1",
              "status": "affected",
              "version": "1.0.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIBM Bob 1.0.4 through 2.0.1 could allow a remote attacker to inject arbitrary code on the system, due to the improper control of user input code.\u003c/p\u003e"
            }
          ],
          "value": "IBM Bob 1.0.4 through 2.0.1 could allow a remote attacker to inject arbitrary code on the system, due to the improper control of user input code."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-08T18:49:02.573Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.ibm.com/support/pages/node/7291535"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIBM strongly recommends addressing the vulnerability now by upgrading to \u003ca href=\"https://bob.ibm.com/docs/shell\" rel=\"nofollow\"\u003eIBM Bob Shell V 2.0.2 or the later\u003c/a\u003e.\u003c/p\u003e\u003cp\u003eWe recommend reviewing the documentation for guidance on installing\u00a0\u003ca href=\"https://bob.ibm.com/docs/ide/getting-started/install\" rel=\"nofollow\"\u003eIBM Bob\u003c/a\u003e.\u003c/p\u003e"
            }
          ],
          "value": "IBM strongly recommends addressing the vulnerability now by upgrading to  IBM Bob Shell V 2.0.2 or the later https://bob.ibm.com/docs/shell .\n\n\n\nWe recommend reviewing the documentation for guidance on installing\u00a0 IBM Bob https://bob.ibm.com/docs/ide/getting-started/install ."
        }
      ],
      "title": "IBM Bob is vulnerable to Remote Code Execution due to improper control of workspace-defined MCP server execution",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003cp\u003eUntil an upgrade can be applied, IBM recommends the following precautions:\u003c/p\u003e\u003cdiv\u003eOnly use IBM Bob Shell with trusted repositories and trusted code sources.\u003c/div\u003e\u003cdiv\u003eAvoid opening repositories obtained from unknown or untrusted parties.\u003c/div\u003e\u003cdiv\u003eReview repository contents and configuration before use in shared or public environments.\u003c/div\u003e\u003cdiv\u003eFollow organizational security practices for validating and approving source code repositories.\u003c/div\u003e\u003cdiv\u003e\u003c/div\u003e\u003cdiv\u003e\u003cdiv\u003eNote: These mitigations reduce exposure but do not fully address the vulnerability. IBM recommends upgrading to IBM Bob Shell version 2.0.2 or later as the preferred remediation.\u003c/div\u003e\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "Until an upgrade can be applied, IBM recommends the following precautions:\n\nOnly use IBM Bob Shell with trusted repositories and trusted code sources.\n\nAvoid opening repositories obtained from unknown or untrusted parties.\n\nReview repository contents and configuration before use in shared or public environments.\n\nFollow organizational security practices for validating and approving source code repositories.\n\n\n\nNote: These mitigations reduce exposure but do not fully address the vulnerability. IBM recommends upgrading to IBM Bob Shell version 2.0.2 or later as the preferred remediation."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-9764",
    "datePublished": "2026-11-08T18:48:35.920Z",
    "dateReserved": "2026-05-27T18:55:55.317Z",
    "dateUpdated": "2026-11-08T18:49:02.573Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "cpes": [
                  "cpe:2.3:a:ibm:bob:1.0.4:*:*:*:*:*:*:*",
                  "cpe:2.3:a:ibm:bob:2.0.1:*:*:*:*:*:*:*"
                ],
                "product": "Bob Shell",
                "vendor": "IBM",
                "versions": [
                  {
                    "lessThanOrEqual": "2.0.1",
                    "status": "affected",
                    "version": "1.0.4",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "psirt@us.ibm.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "IBM Bob 1.0.4 through 2.0.1 could allow a remote attacker to inject arbitrary code on the system, due to the improper control of user input code."
          }
        ],
        "id": "CVE-2026-9764",
        "lastModified": "2026-11-08T19:17:54.363",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "psirt@us.ibm.com",
              "type": "Primary"
            }
          ]
        },
        "published": "2026-11-08T19:17:54.247",
        "references": [
          {
            "source": "psirt@us.ibm.com",
            "url": "https://www.ibm.com/support/pages/node/7291535"
          }
        ],
        "sourceIdentifier": "psirt@us.ibm.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-94"
              }
            ],
            "source": "psirt@us.ibm.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    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.