GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2025-48888 (GCVE-0-2025-48888)

Vulnerability from cvelistv5 – Published: 2025-06-04 19:15 – Updated: 2025-06-04 19:32
VLAI
Title
Deno run with --allow-read and --deny-read flags results in allowed
Summary
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.41.3 and prior to versions 2.1.13, 2.2.13, and 2.3.2, `deno run --allow-read --deny-read main.ts` results in allowed, even though 'deny' should be stronger. The result is the same with all global unary permissions given as `--allow-* --deny-*`. This only affects a nonsensical combination of flags, so there shouldn't be a real impact on the userbase. Users may upgrade to version 2.1.13, 2.2.13, or 2.3.2 to receive a patch.
Severity
5.5 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-04 19:32 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version CPE status
denoland deno Affected: >= 1.41.3, < 2.1.13
Affected: >= 2.2.0, < 2.2.13
Affected: >= 2.3.0, < 2.3.2
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-48888",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-04T19:32:34.846347Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-04T19:32:53.261Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "deno",
          "vendor": "denoland",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.41.3, \u003c 2.1.13"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.2.0, \u003c 2.2.13"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.3.0, \u003c 2.3.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.41.3 and prior to versions 2.1.13, 2.2.13, and 2.3.2, `deno run --allow-read --deny-read main.ts` results in allowed, even though \u0027deny\u0027 should be stronger. The result is the same with all global unary permissions given as `--allow-* --deny-*`. This only affects a nonsensical combination of flags, so there shouldn\u0027t be a real impact on the userbase. Users may upgrade to version 2.1.13, 2.2.13, or 2.3.2 to receive a patch."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-04T19:15:55.041Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683"
        },
        {
          "name": "https://github.com/denoland/deno/pull/22894",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/denoland/deno/pull/22894"
        },
        {
          "name": "https://github.com/denoland/deno/pull/29213",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/denoland/deno/pull/29213"
        },
        {
          "name": "https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db"
        },
        {
          "name": "https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f"
        },
        {
          "name": "https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf"
        }
      ],
      "source": {
        "advisory": "GHSA-xqxc-x6p3-w683",
        "discovery": "UNKNOWN"
      },
      "title": "Deno run with --allow-read and --deny-read flags results in allowed"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-48888",
    "datePublished": "2025-06-04T19:15:55.041Z",
    "dateReserved": "2025-05-27T20:14:34.297Z",
    "dateUpdated": "2025-06-04T19:32:53.261Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-48888",
      "date": "2026-09-16",
      "epss": "0.00406",
      "percentile": "0.34364"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-48888\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2025-06-04T20:15:23.977\",\"lastModified\":\"2026-06-17T09:30:26.283\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.41.3 and prior to versions 2.1.13, 2.2.13, and 2.3.2, `deno run --allow-read --deny-read main.ts` results in allowed, even though \u0027deny\u0027 should be stronger. The result is the same with all global unary permissions given as `--allow-* --deny-*`. This only affects a nonsensical combination of flags, so there shouldn\u0027t be a real impact on the userbase. Users may upgrade to version 2.1.13, 2.2.13, or 2.3.2 to receive a patch.\"},{\"lang\":\"es\",\"value\":\"Deno es un entorno de ejecuci\u00f3n de JavaScript, TypeScript y WebAssembly. A partir de la versi\u00f3n 1.41.3 y anteriores a las versiones 2.1.13, 2.2.13 y 2.3.2, `deno run --allow-read --deny-read main.ts` da como resultado \\\"permitido\\\", aunque `deny\u0027 deber\u00eda ser m\u00e1s seguro. El resultado es el mismo con todos los permisos unarios globales asignados como `--allow-* --deny-*`. Esto solo afecta a una combinaci\u00f3n de indicadores sin sentido, por lo que no deber\u00eda tener un impacto real en la base de usuarios. Los usuarios pueden actualizar a las versiones 2.1.13, 2.2.13 o 2.3.2 para recibir un parche.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"denoland\",\"product\":\"deno\",\"versions\":[{\"version\":\"\u003e= 1.41.3, \u003c 2.1.13\",\"status\":\"affected\"},{\"version\":\"\u003e= 2.2.0, \u003c 2.2.13\",\"status\":\"affected\"},{\"version\":\"\u003e= 2.3.0, \u003c 2.3.2\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"LOW\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"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\"}}],\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-06-04T19:32:34.846347Z\",\"id\":\"CVE-2025-48888\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-863\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.41.3\",\"versionEndExcluding\":\"2.1.13\",\"matchCriteriaId\":\"497675CF-A49B-41AB-A559-1A0B5893A747\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.2.0\",\"versionEndExcluding\":\"2.2.13\",\"matchCriteriaId\":\"3601EB7D-5985-4B5F-87AE-1F47BA4677D3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.3.0\",\"versionEndExcluding\":\"2.3.2\",\"matchCriteriaId\":\"019F705F-B29F-43B0-8ED5-456D717518B4\"}]}]}],\"references\":[{\"url\":\"https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/denoland/deno/pull/22894\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://github.com/denoland/deno/pull/29213\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2025-06-06T19:16:58+00:00",
      "cve": "CVE-2025-48888",
      "id": "CVE-2025-48888",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Deno run with --allow-read and --deny-read flags results in allowed",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-48888.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-06-18T02:02:31Z",
      "cve": "CVE-2025-48888",
      "id": "CVE-2025-48888",
      "initial_release_date": "2025-06-06T02:14:15Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-48888",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-48888.json",
      "version": "5"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-48888\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-06-04T19:32:34.846347Z\"}}}], \"references\": [{\"url\": \"https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-06-04T19:31:43.733Z\"}}], \"cna\": {\"title\": \"Deno run with --allow-read and --deny-read flags results in allowed\", \"source\": {\"advisory\": \"GHSA-xqxc-x6p3-w683\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 5.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"LOW\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"denoland\", \"product\": \"deno\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 1.41.3, \u003c 2.1.13\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.2.0, \u003c 2.2.13\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.3.0, \u003c 2.3.2\"}]}], \"references\": [{\"url\": \"https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683\", \"name\": \"https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/denoland/deno/pull/22894\", \"name\": \"https://github.com/denoland/deno/pull/22894\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/denoland/deno/pull/29213\", \"name\": \"https://github.com/denoland/deno/pull/29213\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db\", \"name\": \"https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f\", \"name\": \"https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf\", \"name\": \"https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.41.3 and prior to versions 2.1.13, 2.2.13, and 2.3.2, `deno run --allow-read --deny-read main.ts` results in allowed, even though \u0027deny\u0027 should be stronger. The result is the same with all global unary permissions given as `--allow-* --deny-*`. This only affects a nonsensical combination of flags, so there shouldn\u0027t be a real impact on the userbase. Users may upgrade to version 2.1.13, 2.2.13, or 2.3.2 to receive a patch.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-863\", \"description\": \"CWE-863: Incorrect Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2025-06-04T19:15:55.041Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-48888\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-06-04T19:32:53.261Z\", \"dateReserved\": \"2025-05-27T20:14:34.297Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-06-04T19:15:55.041Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.