FKIE_CVE-2026-61670

Vulnerability from fkie_nvd - Published: 2026-09-18 21:17 - Updated: 2026-09-24 21:25
Severity
6.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Summary
microsandbox is an easy, fast, local-first microVM runtime and library. Prior to 0.5.10, sdk/rust/lib/runtime/spawn.rs serializes NetworkConfig secret values into the --network-config argument and passes per-sandbox secrets through repeated --env arguments accepted by crates/cli/lib/sandbox_cmd.rs. Other local users or co-resident processes can read these values through the host process table, including /proc process command lines on Linux and process listings on Linux and macOS, for the lifetime of the sandbox. Exploitation does not require code execution inside the sandbox or access to the spawning user's session, and can disclose host-side API keys, tokens, and environment secrets on shared hosts, CI runners, and developer systems. This issue is fixed in version 0.5.10.
References
security-advisories@github.comhttps://github.com/superradcompany/microsandbox/commit/2ac6a177b11212d392bf1e7dc77aaf14e4768aa8
security-advisories@github.comhttps://github.com/superradcompany/microsandbox/commit/fbfb2366bfafad5e6df8778183f95fd8ca3c00a4
security-advisories@github.comhttps://github.com/superradcompany/microsandbox/issues/997
security-advisories@github.comhttps://github.com/superradcompany/microsandbox/pull/1006
security-advisories@github.comhttps://github.com/superradcompany/microsandbox/releases/tag/v0.5.10
security-advisories@github.comhttps://github.com/superradcompany/microsandbox/security/advisories/GHSA-m8f5-rh7h-vgg3
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "microsandbox",
          "vendor": "superradcompany",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.5.10"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "microsandbox is an easy, fast, local-first microVM runtime and library. Prior to 0.5.10, sdk/rust/lib/runtime/spawn.rs serializes NetworkConfig secret values into the --network-config argument and passes per-sandbox secrets through repeated --env arguments accepted by crates/cli/lib/sandbox_cmd.rs. Other local users or co-resident processes can read these values through the host process table, including /proc process command lines on Linux and process listings on Linux and macOS, for the lifetime of the sandbox. Exploitation does not require code execution inside the sandbox or access to the spawning user\u0027s session, and can disclose host-side API keys, tokens, and environment secrets on shared hosts, CI runners, and developer systems. This issue is fixed in version 0.5.10."
    }
  ],
  "id": "CVE-2026-61670",
  "lastModified": "2026-09-24T21:25:27.050",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61670",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-21T19:40:17.339147Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-18T21:17:01.973",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/superradcompany/microsandbox/commit/2ac6a177b11212d392bf1e7dc77aaf14e4768aa8"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/superradcompany/microsandbox/commit/fbfb2366bfafad5e6df8778183f95fd8ca3c00a4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/superradcompany/microsandbox/issues/997"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/superradcompany/microsandbox/pull/1006"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/superradcompany/microsandbox/releases/tag/v0.5.10"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/superradcompany/microsandbox/security/advisories/GHSA-m8f5-rh7h-vgg3"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-214"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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