CVE-2025-22873 (GCVE-0-2025-22873)

Vulnerability from cvelistv5 – Published: 2026-02-04 23:05 – Updated: 2026-02-05 15:03
VLAI
Title
Improper access to parent directory of root in os
Summary
It was possible to improperly access the parent directory of an os.Root by opening a filename ending in "../". For example, Root.Open("../") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent.
Severity
3.8 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-23 - Relative Path Traversal
Assigner
Go
References
Impacted products
Vendor Product Version
Go standard library os Affected: 0 , < 1.23.9 (semver)
Affected: 1.24.0-0 , < 1.24.3 (semver)
Create a notification for this product.
Credits
Dan Sebastian Thrane of SDU eScience Center
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-02-04T23:08:02.625Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/05/06/2"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "NONE",
              "baseScore": 3.8,
              "baseSeverity": "LOW",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-22873",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-05T15:03:11.291122Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-23",
                "description": "CWE-23 Relative Path Traversal",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-05T15:03:55.451Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "os",
          "product": "os",
          "programRoutines": [
            {
              "name": "splitPathInRoot"
            },
            {
              "name": "checkPathEscapesInternal"
            },
            {
              "name": "doInRoot"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.23.9",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.24.3",
              "status": "affected",
              "version": "1.24.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Dan Sebastian Thrane of SDU eScience Center"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "It was possible to improperly access the parent directory of an os.Root by opening a filename ending in \"../\". For example, Root.Open(\"../\") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-23: Relative Path Traversal",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-04T23:05:24.803Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/cl/670036"
        },
        {
          "url": "https://go.dev/issue/73555"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/UZoIkUT367A/m/5WDxKizJAQAJ"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4403"
        }
      ],
      "title": "Improper access to parent directory of root in os"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2025-22873",
    "datePublished": "2026-02-04T23:05:24.803Z",
    "dateReserved": "2025-01-08T19:11:42.835Z",
    "dateUpdated": "2026-02-05T15:03:55.451Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-22873",
      "date": "2026-07-18",
      "epss": "0.00238",
      "percentile": "0.14757"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22873\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2026-02-04T23:15:54.220\",\"lastModified\":\"2026-06-17T08:50:42.207\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"It was possible to improperly access the parent directory of an os.Root by opening a filename ending in \\\"../\\\". For example, Root.Open(\\\"../\\\") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent.\"},{\"lang\":\"es\",\"value\":\"Fue posible acceder de forma indebida al directorio padre de un os.Root al abrir un nombre de archivo que termina en \u0027../\u0027. Por ejemplo, Root.Open(\u0027../\u0027) abrir\u00eda el directorio padre del Root. Este escape solo permite abrir el propio directorio padre, no los ancestros del padre ni los archivos contenidos dentro del padre.\"}],\"affected\":[{\"source\":\"security@golang.org\",\"affectedData\":[{\"vendor\":\"Go standard library\",\"product\":\"os\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://pkg.go.dev\",\"packageName\":\"os\",\"programRoutines\":[{\"name\":\"splitPathInRoot\"},{\"name\":\"checkPathEscapesInternal\"},{\"name\":\"doInRoot\"}],\"versions\":[{\"version\":\"0\",\"lessThan\":\"1.23.9\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"1.24.0-0\",\"lessThan\":\"1.24.3\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N\",\"baseScore\":3.8,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.0,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-02-05T15:03:11.291122Z\",\"id\":\"CVE-2025-22873\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-23\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.23.9\",\"matchCriteriaId\":\"6A122760-875E-46BB-9B57-DB449401ABB4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.24.0\",\"versionEndExcluding\":\"1.24.3\",\"matchCriteriaId\":\"97948C01-99E9-49E8-84C6-0E9AFE120C80\"}]}]}],\"references\":[{\"url\":\"https://go.dev/cl/670036\",\"source\":\"security@golang.org\",\"tags\":[\"Patch\",\"Product\"]},{\"url\":\"https://go.dev/issue/73555\",\"source\":\"security@golang.org\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://groups.google.com/g/golang-announce/c/UZoIkUT367A/m/5WDxKizJAQAJ\",\"source\":\"security@golang.org\",\"tags\":[\"Mailing List\",\"Release Notes\"]},{\"url\":\"https://pkg.go.dev/vuln/GO-2026-4403\",\"source\":\"security@golang.org\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2025/05/06/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-02T19:22:36+00:00",
      "cve": "CVE-2025-22873",
      "id": "CVE-2025-22873",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:fixed": "8",
      "product_status:known_affected": "245",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "os: os: Information disclosure via path traversal using specially crafted filenames",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-22873.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2025/05/06/2\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-02-04T23:08:02.625Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 3.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-22873\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-05T15:03:11.291122Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-23\", \"description\": \"CWE-23 Relative Path Traversal\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-05T15:01:19.064Z\"}}], \"cna\": {\"title\": \"Improper access to parent directory of root in os\", \"credits\": [{\"lang\": \"en\", \"value\": \"Dan Sebastian Thrane of SDU eScience Center\"}], \"affected\": [{\"vendor\": \"Go standard library\", \"product\": \"os\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"1.23.9\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.24.0-0\", \"lessThan\": \"1.24.3\", \"versionType\": \"semver\"}], \"packageName\": \"os\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"splitPathInRoot\"}, {\"name\": \"checkPathEscapesInternal\"}, {\"name\": \"doInRoot\"}]}], \"references\": [{\"url\": \"https://go.dev/cl/670036\"}, {\"url\": \"https://go.dev/issue/73555\"}, {\"url\": \"https://groups.google.com/g/golang-announce/c/UZoIkUT367A/m/5WDxKizJAQAJ\"}, {\"url\": \"https://pkg.go.dev/vuln/GO-2026-4403\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"It was possible to improperly access the parent directory of an os.Root by opening a filename ending in \\\"../\\\". For example, Root.Open(\\\"../\\\") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-23: Relative Path Traversal\"}]}], \"providerMetadata\": {\"orgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"shortName\": \"Go\", \"dateUpdated\": \"2026-02-04T23:05:24.803Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-22873\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-05T15:03:55.451Z\", \"dateReserved\": \"2025-01-08T19:11:42.835Z\", \"assignerOrgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"datePublished\": \"2026-02-04T23:05:24.803Z\", \"assignerShortName\": \"Go\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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.