CVE-2026-53657 (GCVE-0-2026-53657)

Vulnerability from cvelistv5 – Published: 2026-07-10 15:42 – Updated: 2026-07-10 15:42
VLAI
Title
Lima: An arbitrary user in a QEMU VM could gain the root privilege in the VM via the guest agent socket
Summary
Lima launches Linux virtual machines, typically on macOS, for running containerd. Prior to 2.1.3, on an instance of Lima running with the qemu driver, an arbitrary user in the VM could access /run/lima-guestagent.sock when the guest agent is enabled, which could result in running arbitrary commands with root privileges in the VM because the guest agent socket provides tunneling for arbitrary addresses, including Unix socket addresses for privileged daemons like D-Bus. This issue is fixed in version 2.1.3.
Severity
8.2 (High)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-276 - Incorrect Default Permissions
  • CWE-668 - Exposure of Resource to Wrong Sphere
Assigner
References
Impacted products
Vendor Product Version
lima-vm lima Affected: < 2.1.3
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  "containers": {
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        {
          "product": "lima",
          "vendor": "lima-vm",
          "versions": [
            {
              "status": "affected",
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        }
      ],
      "metrics": [
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
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      "problemTypes": [
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              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
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              "description": "CWE-668: Exposure of Resource to Wrong Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-10T15:42:39.774Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/lima-vm/lima/security/advisories/GHSA-2j9v-p4xj-cjw2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/lima-vm/lima/security/advisories/GHSA-2j9v-p4xj-cjw2"
        },
        {
          "name": "https://github.com/lima-vm/lima/commit/8a45892378d22f40505c31a38f786a07701b6d50",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/lima-vm/lima/commit/8a45892378d22f40505c31a38f786a07701b6d50"
        },
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          "name": "https://github.com/lima-vm/lima/commit/b08cae8a670cf916d5da11c48a6de76dabd89678",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/lima-vm/lima/commit/b08cae8a670cf916d5da11c48a6de76dabd89678"
        },
        {
          "name": "https://github.com/lima-vm/lima/releases/tag/v2.1.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/lima-vm/lima/releases/tag/v2.1.3"
        }
      ],
      "source": {
        "advisory": "GHSA-2j9v-p4xj-cjw2",
        "discovery": "UNKNOWN"
      },
      "title": "Lima: An arbitrary user in a QEMU VM could gain the root privilege in the VM via the guest agent socket"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-53657",
    "datePublished": "2026-07-10T15:42:39.774Z",
    "dateReserved": "2026-06-09T20:50:36.876Z",
    "dateUpdated": "2026-07-10T15:42:39.774Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53657\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-10T17:16:57.987\",\"lastModified\":\"2026-07-10T19:10:59.333\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Lima launches Linux virtual machines, typically on macOS, for running containerd. Prior to 2.1.3, on an instance of Lima running with the qemu driver, an arbitrary user in the VM could access /run/lima-guestagent.sock when the guest agent is enabled, which could result in running arbitrary commands with root privileges in the VM because the guest agent socket provides tunneling for arbitrary addresses, including Unix socket addresses for privileged daemons like D-Bus. This issue is fixed in version 2.1.3.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"lima-vm\",\"product\":\"lima\",\"versions\":[{\"version\":\"\u003c 2.1.3\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.5,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-276\"},{\"lang\":\"en\",\"value\":\"CWE-668\"}]}],\"references\":[{\"url\":\"https://github.com/lima-vm/lima/commit/8a45892378d22f40505c31a38f786a07701b6d50\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/lima-vm/lima/commit/b08cae8a670cf916d5da11c48a6de76dabd89678\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/lima-vm/lima/releases/tag/v2.1.3\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/lima-vm/lima/security/advisories/GHSA-2j9v-p4xj-cjw2\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}



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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.

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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.
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  • 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.