Vulnerability-Lookup

CVE-2026-33414 (GCVE-0-2026-33414)

Vulnerability from cvelistv5 – Published: 2026-04-14 22:42 – Updated: 2026-04-14 22:42

Title

PowerShell Command Injection in Podman HyperV Machine

Summary

Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection. Because PowerShell evaluates subexpressions inside double-quoted strings before executing the outer command, an attacker who can control the VM image path through a crafted machine name or image directory can execute arbitrary PowerShell commands with the privileges of the Podman process. On typical Windows installations this means SYSTEM-level code execution, and only Windows is affected as the code is exclusive to the HyperV backend. This issue has been patched in version 5.8.2.

Severity ?

4 (Medium)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/containers/podman/security/adv…	x_refsource_CONFIRM
	https://github.com/containers/podman/commit/571c8…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	containers	podman	Affected: >= 4.8.0, < 5.8.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "podman",
          "vendor": "containers",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.8.0, \u003c 5.8.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection. Because PowerShell evaluates subexpressions inside double-quoted strings before executing the outer command, an attacker who can control the VM image path through a crafted machine name or image directory can execute arbitrary PowerShell commands with the privileges of the Podman process. On typical Windows installations this means SYSTEM-level code execution, and only Windows is affected as the code is exclusive to the HyperV backend. This issue has been patched in version 5.8.2."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "HIGH",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-14T22:42:19.822Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59"
        },
        {
          "name": "https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed"
        }
      ],
      "source": {
        "advisory": "GHSA-hc8w-h2mf-hp59",
        "discovery": "UNKNOWN"
      },
      "title": "PowerShell Command Injection in Podman HyperV Machine"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-33414",
    "datePublished": "2026-04-14T22:42:19.822Z",
    "dateReserved": "2026-03-19T17:02:34.171Z",
    "dateUpdated": "2026-04-14T22:42:19.822Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-33414",
      "date": "2026-04-15",
      "epss": "0.00028",
      "percentile": "0.07783"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-33414\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-04-14T23:16:27.987\",\"lastModified\":\"2026-04-14T23:16:27.987\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection. Because PowerShell evaluates subexpressions inside double-quoted strings before executing the outer command, an attacker who can control the VM image path through a crafted machine name or image directory can execute arbitrary PowerShell commands with the privileges of the Podman process. On typical Windows installations this means SYSTEM-level code execution, and only Windows is affected as the code is exclusive to the HyperV backend. This issue has been patched in version 5.8.2.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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\",\"baseScore\":4.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"UNREPORTED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"references\":[{\"url\":\"https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}

GHSA-HC8W-H2MF-HP59

Vulnerability from github – Published: 2026-04-14 22:30 – Updated: 2026-04-14 22:30

Summary

PowerShell Command Injection in Podman HyperV Machine

Details

Summary

A command injection vulnerability exists in Podman's HyperV machine backend. The VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection.

Affected Code

File: pkg/machine/hyperv/stubber.go:647

resize := exec.Command("powershell", []string{
    "-command",
    fmt.Sprintf("Resize-VHD \"%s\" %d", imagePath.GetPath(), newSize.ToBytes()),
}...)

Root Cause

PowerShell evaluates $() subexpressions inside double-quoted strings before executing the outer command. The fmt.Sprintf call places the user-controlled image path directly into double quotes without escaping or sanitization.

Impact

An attacker who can control the VM image path (through a crafted machine name or image directory) can execute arbitrary PowerShell commands with the privileges of the Podman process on the Windows host. On typical Windows installations, this means SYSTEM-level code execution.

Patch

https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed

The affected code is only used on Windows, all other operating systems are not affected by this and can thus ignore the CVE patch.

Credit

We like to thank Sang-Hoon Choi (@KoreaSecurity) for reporting this issue to us.

Severity ?

4.0 (Medium)


                  
                    CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/containers/podman/v4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.8.0"
            },
            {
              "last_affected": "4.9.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 5.8.1"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/containers/podman/v5"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.8.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33414"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-14T22:30:24Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nA command injection vulnerability exists in Podman\u0027s HyperV machine backend. The VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing `$()` subexpression injection.\n\n## Affected Code\n\n**File**: `pkg/machine/hyperv/stubber.go:647`\n\n```go\nresize := exec.Command(\"powershell\", []string{\n    \"-command\",\n    fmt.Sprintf(\"Resize-VHD \\\"%s\\\" %d\", imagePath.GetPath(), newSize.ToBytes()),\n}...)\n```\n\n\n\n## Root Cause\n\nPowerShell evaluates `$()` subexpressions inside double-quoted strings before executing the outer command. The `fmt.Sprintf` call places the user-controlled image path directly into double quotes without escaping or sanitization.\n\n## Impact\n\nAn attacker who can control the VM image path (through a crafted machine name or image directory) can execute arbitrary PowerShell commands with the privileges of the Podman process on the Windows host. On typical Windows installations, this means SYSTEM-level code execution.\n\n\n## Patch\n\nhttps://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed\n\nThe affected code is only used on Windows, all other operating systems are not affected by this and can thus ignore the CVE patch.\n\n## Credit\n\nWe like to thank Sang-Hoon Choi (@KoreaSecurity) for reporting this issue to us.",
  "id": "GHSA-hc8w-h2mf-hp59",
  "modified": "2026-04-14T22:30:24Z",
  "published": "2026-04-14T22:30:24Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59"
    },
    {
      "type": "WEB",
      "url": "https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/containers/podman"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "PowerShell Command Injection in Podman HyperV Machine"
}

FKIE_CVE-2026-33414

Vulnerability from fkie_nvd - Published: 2026-04-14 23:16 - Updated: 2026-04-14 23:16

Severity ?

4.0 (Medium) - CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed
	security-advisories@github.com	https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection. Because PowerShell evaluates subexpressions inside double-quoted strings before executing the outer command, an attacker who can control the VM image path through a crafted machine name or image directory can execute arbitrary PowerShell commands with the privileges of the Podman process. On typical Windows installations this means SYSTEM-level code execution, and only Windows is affected as the code is exclusive to the HyperV backend. This issue has been patched in version 5.8.2."
    }
  ],
  "id": "CVE-2026-33414",
  "lastModified": "2026-04-14T23:16:27.987",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 4.0,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "UNREPORTED",
          "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": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-14T23:16:27.987",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/containers/podman/commit/571c842bd357ee626019ea97d030fb772fc654ed"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/containers/podman/security/advisories/GHSA-hc8w-h2mf-hp59"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2026-33414 (GCVE-0-2026-33414)

GHSA-HC8W-H2MF-HP59

Summary

Affected Code

Root Cause

Impact

Patch

Credit

FKIE_CVE-2026-33414

Tags

Sightings

Nomenclature