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.
CWE
  • CWE-23 - Relative Path Traversal
Assigner
Go
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

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          "dateUpdated": "2026-02-04T23:08:02.625Z",
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        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/05/06/2"
          }
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        "title": "CVE Program Container"
      },
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        "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",
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                "id": "CVE-2025-22873",
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                "timestamp": "2026-02-05T15:03:11.291122Z",
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        "providerMetadata": {
          "dateUpdated": "2026-02-05T15:03:55.451Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        "title": "CISA ADP Vulnrichment"
      }
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      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "os",
          "product": "os",
          "programRoutines": [
            {
              "name": "splitPathInRoot"
            },
            {
              "name": "checkPathEscapesInternal"
            },
            {
              "name": "doInRoot"
            }
          ],
          "vendor": "Go standard library",
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              "lessThan": "1.23.9",
              "status": "affected",
              "version": "0",
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          "value": "Dan Sebastian Thrane of SDU eScience Center"
        }
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      "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."
        }
      ],
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        "dateUpdated": "2026-02-04T23:05:24.803Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
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          "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"
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    "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"
}


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  • 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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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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