CVE-2026-77822 (GCVE-0-2026-77822)
Vulnerability from cvelistv5
Published
2026-09-04 15:15
Modified
2026-09-04 18:24
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.
References
Impacted products
Vendor Product Version
IBM ContextForge MCP Gateway Version: <= v1.0.8
    cpe:2.3:a:ibm:contextforge-mcp-gateway:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-77822",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-04T17:09:15.348543Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-04T18:24:58.315Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:contextforge-mcp-gateway:*:*:*:*:*:*:*:*"
          ],
          "product": "ContextForge MCP Gateway",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= v1.0.8"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.\u003c/p\u003e"
            }
          ],
          "value": "IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918 Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T15:15:35.403Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.ibm.com/support/pages/node/7286055"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003c/div\u003e\u003cp\u003e\u003cstrong\u003eIBM strongly recommends addressing the vulnerability now.\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eProduct(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eVersion(s) number and/or range\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eRemediation/Fix/Instructions\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eIBM ContextForge MCP Gateway\u003c/td\u003e\u003ctd\u003e\u0026lt;= v1.0.8\u003c/td\u003e\u003ctd\u003eUpgrade to v1.0.9\u00a0\n\u003cdiv\u003e\u003cdiv\u003e\u003ca href=\"https://github.com/IBM/mcp-context-forge/releases/tag/v1.0.9\" rel=\"nofollow\"\u003ehttps://github.com/IBM/mcp-context-forge/releases/tag/v1.0.9\u003c/a\u003e\u003c/div\u003e\u003c/div\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u00a0Note: \u0026lt;Component A / B names\u0026gt; are bundled with \u0026lt;Product profile name\u0026gt; to provide \u0026lt;feature / function description\u0026gt;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e"
            }
          ],
          "value": "IBM strongly recommends addressing the vulnerability now.\n\nProduct(s)Version(s) number and/or range\u00a0Remediation/Fix/InstructionsIBM ContextForge MCP Gateway\u003c= v1.0.8Upgrade to v1.0.9\u00a0\n https://github.com/IBM/mcp-context-forge/releases/tag/v1.0.9 \n\n\n\n\n\n\n\n\u00a0Note: \u003cComponent A / B names\u003e are bundled with \u003cProduct profile name\u003e to provide \u003cfeature / function description\u003e"
        }
      ],
      "title": "IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) via the A2A agent invocation endpoint",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003cdiv\u003eOperators who cannot immediately upgrade can reduce exposure by:\u003c/div\u003e\u003cbr/\u003e\u003cdiv\u003e1. **Disable A2A** \u2014 set the environment variable `MCPGATEWAY_A2A_ENABLED=False` to disable the A2A subsystem entirely. This removes the vulnerable endpoint from the attack surface at the cost of A2A functionality.\u003c/div\u003e\u003cdiv\u003e2. **Restrict A2A create/invoke permissions** \u2014 revoke A2A creation and invocation rights from developer and team_admin roles in environments where A2A is not required.\u003c/div\u003e\u003cdiv\u003e3. **Network-level egress controls** \u2014 enforce outbound network policy at the host or cloud level to block the gateway process from reaching cloud metadata endpoints and private RFC 1918 address ranges, preventing exploitation of the DNS-rebinding window even if a rebind attempt succeeds.\u003c/div\u003e\u003cbr/\u003e\u003cdiv\u003eNone of these mitigations eliminate the underlying vulnerability; IBM strongly recommends upgrading to the fixed version.\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "Operators who cannot immediately upgrade can reduce exposure by:\n\n\n1. **Disable A2A** \u2014 set the environment variable `MCPGATEWAY_A2A_ENABLED=False` to disable the A2A subsystem entirely. This removes the vulnerable endpoint from the attack surface at the cost of A2A functionality.\n\n2. **Restrict A2A create/invoke permissions** \u2014 revoke A2A creation and invocation rights from developer and team_admin roles in environments where A2A is not required.\n\n3. **Network-level egress controls** \u2014 enforce outbound network policy at the host or cloud level to block the gateway process from reaching cloud metadata endpoints and private RFC 1918 address ranges, preventing exploitation of the DNS-rebinding window even if a rebind attempt succeeds.\n\n\nNone of these mitigations eliminate the underlying vulnerability; IBM strongly recommends upgrading to the fixed version."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-77822",
    "datePublished": "2026-09-04T15:15:35.403Z",
    "dateReserved": "2026-08-21T14:36:12.469Z",
    "dateUpdated": "2026-09-04T18:24:58.315Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-77822\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-04T17:09:15.348543Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-04T17:09:16.341Z\"}}], \"cna\": {\"title\": \"IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) via the A2A agent invocation endpoint\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 8.2, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:ibm:contextforge-mcp-gateway:*:*:*:*:*:*:*:*\"], \"vendor\": \"IBM\", \"product\": \"ContextForge MCP Gateway\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c= v1.0.8\"}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"IBM strongly recommends addressing the vulnerability now.\\n\\nProduct(s)Version(s) number and/or range\\u00a0Remediation/Fix/InstructionsIBM ContextForge MCP Gateway\u003c= v1.0.8Upgrade to v1.0.9\\u00a0\\n https://github.com/IBM/mcp-context-forge/releases/tag/v1.0.9 \\n\\n\\n\\n\\n\\n\\n\\n\\u00a0Note: \u003cComponent A / B names\u003e are bundled with \u003cProduct profile name\u003e to provide \u003cfeature / function description\u003e\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cdiv\u003e\u003c/div\u003e\u003cp\u003e\u003cstrong\u003eIBM strongly recommends addressing the vulnerability now.\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eProduct(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eVersion(s) number and/or range\\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eRemediation/Fix/Instructions\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eIBM ContextForge MCP Gateway\u003c/td\u003e\u003ctd\u003e\u0026lt;= v1.0.8\u003c/td\u003e\u003ctd\u003eUpgrade to v1.0.9\\u00a0\\n\u003cdiv\u003e\u003cdiv\u003e\u003ca href=\\\"https://github.com/IBM/mcp-context-forge/releases/tag/v1.0.9\\\" rel=\\\"nofollow\\\"\u003ehttps://github.com/IBM/mcp-context-forge/releases/tag/v1.0.9\u003c/a\u003e\u003c/div\u003e\u003c/div\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\\u00a0Note: \u0026lt;Component A / B names\u0026gt; are bundled with \u0026lt;Product profile name\u0026gt; to provide \u0026lt;feature / function description\u0026gt;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://www.ibm.com/support/pages/node/7286055\", \"tags\": [\"vendor-advisory\", \"patch\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Operators who cannot immediately upgrade can reduce exposure by:\\n\\n\\n1. **Disable A2A** \\u2014 set the environment variable `MCPGATEWAY_A2A_ENABLED=False` to disable the A2A subsystem entirely. This removes the vulnerable endpoint from the attack surface at the cost of A2A functionality.\\n\\n2. **Restrict A2A create/invoke permissions** \\u2014 revoke A2A creation and invocation rights from developer and team_admin roles in environments where A2A is not required.\\n\\n3. **Network-level egress controls** \\u2014 enforce outbound network policy at the host or cloud level to block the gateway process from reaching cloud metadata endpoints and private RFC 1918 address ranges, preventing exploitation of the DNS-rebinding window even if a rebind attempt succeeds.\\n\\n\\nNone of these mitigations eliminate the underlying vulnerability; IBM strongly recommends upgrading to the fixed version.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cdiv\u003e\u003cdiv\u003eOperators who cannot immediately upgrade can reduce exposure by:\u003c/div\u003e\u003cbr/\u003e\u003cdiv\u003e1. **Disable A2A** \\u2014 set the environment variable `MCPGATEWAY_A2A_ENABLED=False` to disable the A2A subsystem entirely. This removes the vulnerable endpoint from the attack surface at the cost of A2A functionality.\u003c/div\u003e\u003cdiv\u003e2. **Restrict A2A create/invoke permissions** \\u2014 revoke A2A creation and invocation rights from developer and team_admin roles in environments where A2A is not required.\u003c/div\u003e\u003cdiv\u003e3. **Network-level egress controls** \\u2014 enforce outbound network policy at the host or cloud level to block the gateway process from reaching cloud metadata endpoints and private RFC 1918 address ranges, preventing exploitation of the DNS-rebinding window even if a rebind attempt succeeds.\u003c/div\u003e\u003cbr/\u003e\u003cdiv\u003eNone of these mitigations eliminate the underlying vulnerability; IBM strongly recommends upgrading to the fixed version.\u003c/div\u003e\u003c/div\u003e\", \"base64\": false}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eIBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-918\", \"description\": \"CWE-918 Server-Side Request Forgery (SSRF)\"}]}], \"providerMetadata\": {\"orgId\": \"9a959283-ebb5-44b6-b705-dcc2bbced522\", \"shortName\": \"ibm\", \"dateUpdated\": \"2026-09-04T15:15:35.403Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-77822\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-04T18:24:58.315Z\", \"dateReserved\": \"2026-08-21T14:36:12.469Z\", \"assignerOrgId\": \"9a959283-ebb5-44b6-b705-dcc2bbced522\", \"datePublished\": \"2026-09-04T15:15:35.403Z\", \"assignerShortName\": \"ibm\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…