{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:akuity:kargo:*:*:*:*:*:kubernetes:*:*",
              "matchCriteriaId": "6AE788C4-E87D-451C-A852-CCAC80603591",
              "versionEndExcluding": "1.6.4",
              "versionStartIncluding": "1.4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:akuity:kargo:*:*:*:*:*:kubernetes:*:*",
              "matchCriteriaId": "DE9FD8CD-AEAD-4A17-98BA-D7DBD0740F48",
              "versionEndExcluding": "1.7.9",
              "versionStartIncluding": "1.7.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:akuity:kargo:*:*:*:*:*:kubernetes:*:*",
              "matchCriteriaId": "41895944-267F-4EFD-B63F-D8EB93705DAB",
              "versionEndExcluding": "1.8.12",
              "versionStartIncluding": "1.8.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:akuity:kargo:*:*:*:*:*:kubernetes:*:*",
              "matchCriteriaId": "3B6E82AC-BA34-422F-B74D-BDBDF39FAEF2",
              "versionEndExcluding": "1.9.5",
              "versionStartIncluding": "1.9.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kargo manages and automates the promotion of software artifacts. In versions 1.4.0 through 1.6.3, 1.7.0-rc.1 through 1.7.8, 1.8.0-rc.1 through 1.8.11, and 1.9.0-rc.1 through 1.9.4, the http and http-download promotion steps allow Server-Side Request Forgery (SSRF) against link-local addresses, most critically the cloud instance metadata endpoint (169.254.169.254), enabling exfiltration of sensitive data such as IAM credentials. These steps provide full control over request headers and methods, rendering cloud provider header-based SSRF mitigations ineffective. An authenticated attacker with permissions to create/update Stages or craft Promotion resources can exploit this by submitting a malicious Promotion manifest, with response data retrievable via Promotion status fields, Git repositories, or a second http step. This issue has been fixed in versions 1.6.4, 1.7.9, 1.8.12 and 1.9.5."
    },
    {
      "lang": "es",
      "value": "Kargo gestiona y automatiza la promoci\u00f3n de artefactos de software. En las versiones 1.4.0 a 1.6.3, 1.7.0-rc.1 a 1.7.8, 1.8.0-rc.1 a 1.8.11, y 1.9.0-rc.1 a 1.9.4, los pasos de promoci\u00f3n http y http-download permiten la falsificaci\u00f3n de petici\u00f3n del lado del servidor (SSRF) contra direcciones link-local, m\u00e1s cr\u00edticamente el endpoint de metadatos de instancia en la nube (169.254.169.254), permitiendo la exfiltraci\u00f3n de datos sensibles como credenciales IAM. Estos pasos proporcionan control total sobre los encabezados y m\u00e9todos de las peticiones, haciendo ineficaces las mitigaciones de SSRF basadas en encabezados de los proveedores de la nube. Un atacante autenticado con permisos para crear/actualizar Stages o elaborar recursos de Promotion puede explotar esto enviando un manifiesto de Promotion malicioso, con datos de respuesta recuperables a trav\u00e9s de campos de estado de Promotion, repositorios Git, o un segundo paso http. Este problema ha sido solucionado en las versiones 1.6.4, 1.7.9, 1.8.12 y 1.9.5."
    }
  ],
  "id": "CVE-2026-32828",
  "lastModified": "2026-03-30T15:08:11.927",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.0,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "HIGH",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-20T01:15:56.110",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/akuity/kargo/commit/fd25620c2473ed19bec4be4d0f181287ef0f0391"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/akuity/kargo/security/advisories/GHSA-j94x-8wcp-x7hm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/akuity/kargo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.4.0"
            },
            {
              "fixed": "1.6.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/akuity/kargo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.7.0-rc.1"
            },
            {
              "fixed": "1.7.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/akuity/kargo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.8.0-rc.1"
            },
            {
              "fixed": "1.8.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/akuity/kargo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.9.0-rc.1"
            },
            {
              "fixed": "1.9.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32828"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-16T20:47:47Z",
    "nvd_published_at": "2026-03-20T01:15:56Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nKargo\u0027s built-in `http` and `http-download` promotion steps execute outbound HTTP requests from the Kargo controller. By design, these steps do not restrict destination addresses, as there are legitimate use cases for requests to internal and private endpoints. However, this also permits requests to link-local addresses, for which there are no known, legitimate use cases. Of particular concern is the cloud instance metadata endpoint (often `169.254.169.254`), which is unauthenticated and can expose sensitive configuration data including IAM credentials. While cloud providers typically implement header-based SSRF mitigations for these endpoints, the `http` step provides full control over request method and headers, rendering these protections ineffective. The `http-download` step provides control over headers only (not method), but this is still sufficient for exfiltrating data from metadata endpoints.\n\nThere are two vectors for exploitation. A user with permission to create or update a Stage can configure its promotion template to include malicious `http` or `http-download` steps. Alternatively, a user with `promote` permission on any Stage can craft a Promotion resource directly. In either case, the controller executes the steps in-cluster, and response data can be inserted into Promotion status fields, written to a Git repository, or sent to a remote location using a second instance of the `http` step.\n\nThe remediation for this issue is the introduction of a safe HTTP transport that refuses to dial link-local addresses. Requests to private and internal addresses will continue to be permitted, as this is by design. It is the responsibility of services at such addresses to implement proper authentication and authorization, and/or the responsibility of platform teams to define and enforce network policies that restrict traffic appropriately.\n\n### Base Metrics\n ---\nThe following sections provide the rationale for the values selected for each of CVSS v4\u0027s base metrics.\n\n### Attack Vector (AV): Network\nThe Kargo API server is accessible over HTTP/HTTPS. No local, adjacent network, or physical access is required.\n\n### Attack Complexity (AC): Low\nExploitation requires only a crafted Promotion manifest submitted via the Kargo API. No race conditions, non-default configurations, or prior information gathering is required.\n\n### Attack Requirements (AT): None\nNo specific environmental conditions are required beyond a standard Kargo deployment. The http and http-download built-in steps are always available.\n\n### Privileges Required (PR): High\nThe attacker must be authenticated to the Kargo API server and hold permissions sufficient to create or update a Stage, or to craft a Promotion resource directly. Although these may not be considered administrative permissions, they are non-trivial, not granted broadly by default, and must be explicitly assigned by a project administrator.\n\n### User Interaction (UI): None\nThe attack is fully automated via API calls. No other user needs to take any action. The controller processes the malicious Promotion without human intervention.\n\n### Confidentiality Impact to Vulnerable System (VC): None\nKargo itself does not expose its own secrets or configuration data through this vulnerability. The impact is to other systems reachable from the controller\u0027s network position, not to Kargo\u0027s own data.\n\n### Integrity Impact to Vulnerable System (VI): None\nKargo\u0027s own data and configuration are not modified by this vulnerability. While malicious Promotion resources are created, they function within Kargo\u0027s normal processing pipeline.\n\n### Availability Impact to Vulnerable System (VA): None\nThis vulnerability does not enable denial of service against Kargo. Each Promotion executes a bounded set of HTTP requests and does not consume disproportionate resources.\n\n### Confidentiality Impact to Subsequent Systems (SC): Low\nThe controller runs in-cluster and can reach link-local addresses, including cloud instance metadata endpoints. These endpoints are unauthenticated and can expose sensitive data such as IAM credentials. Provider-side header-based SSRF mitigations are ineffective because these steps provide full control over request headers.\n\n### Integrity Impact to Subsequent Systems (SI): None\nCloud instance metadata endpoints are read-only. While the http step supports arbitrary HTTP methods, the only unintended access enabled by this vulnerability is to link-local addresses, and these do not accept state-changing requests.\n\n### Availability Impact to Subsequent Systems (SA): None\nA single HTTP request per promotion step does not constitute a meaningful denial-of-service vector against subsequent systems. There is no amplification mechanism.\n\n## Mitigating Factors\n\n- Exploitation requires authentication to the Kargo API server with permissions to create or update Stages, or to craft Promotion resources directly. These permissions must be explicitly granted by a project administrator.\n\n- All Promotion creation is audited. The creating user\u0027s identity is recorded in annotations and Kubernetes events, providing a clear forensic trail.\n\n- The practical impact is limited to cloud instance metadata endpoints. Access to private and internal addresses is by design, and services at those addresses are expected to implement their own authentication and authorization.",
  "id": "GHSA-j94x-8wcp-x7hm",
  "modified": "2026-03-20T21:18:44Z",
  "published": "2026-03-16T20:47:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/akuity/kargo/security/advisories/GHSA-j94x-8wcp-x7hm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32828"
    },
    {
      "type": "WEB",
      "url": "https://github.com/akuity/kargo/commit/fd25620c2473ed19bec4be4d0f181287ef0f0391"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/akuity/kargo"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Kargo Vulnerable to SSRF in Promotion http/http-download Steps Enables Internal Network Access and Data Exfiltration"
}