CVE-2026-54321 (GCVE-0-2026-54321)

Vulnerability from cvelistv5 – Published: 2026-06-23 18:10 – Updated: 2026-06-23 18:10
VLAI
Title
Daytona: Public sandbox previews remain accessible for up to one hour after being made private
Summary
Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. From 0.101.0 until 0.184.0, sandbox previews that were switched from public to private could remain reachable without authentication for a short period after the change, due to a cached visibility state that was not invalidated when the sandbox's visibility changed. This vulnerability is fixed in 0.184.0.
Severity
7 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
CWE
  • CWE-613 - Insufficient Session Expiration
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
daytonaio daytona Affected: >= 0.101.0, < 0.184.0
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "daytona",
          "vendor": "daytonaio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 0.101.0, \u003c 0.184.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. From 0.101.0 until 0.184.0, sandbox previews that were switched from public to private could remain reachable without authentication for a short period after the change, due to a cached visibility state that was not invalidated when the sandbox\u0027s visibility changed. This vulnerability is fixed in 0.184.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-613",
              "description": "CWE-613: Insufficient Session Expiration",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-23T18:10:05.521Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/daytonaio/daytona/security/advisories/GHSA-ww63-pv5x-vfc8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/daytonaio/daytona/security/advisories/GHSA-ww63-pv5x-vfc8"
        }
      ],
      "source": {
        "advisory": "GHSA-ww63-pv5x-vfc8",
        "discovery": "UNKNOWN"
      },
      "title": "Daytona: Public sandbox previews remain accessible for up to one hour after being made private"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54321",
    "datePublished": "2026-06-23T18:10:05.521Z",
    "dateReserved": "2026-06-12T18:42:02.223Z",
    "dateUpdated": "2026-06-23T18:10:05.521Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-54321",
      "date": "2026-06-14",
      "epss": "0.00207",
      "percentile": "0.43233"
    }
  }
}


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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.

Sightings

Author Source Type Date Other

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.