CVE-2026-35364 (GCVE-0-2026-35364)
Vulnerability from cvelistv5
Published
2026-04-22 16:08
Modified
2026-04-22 17:22
CWE
  • CWE-367 - Time-of-Check Time-of-Use (TOCTOU) Race Condition
Summary
A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source.
References
Impacted products
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-35364",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-22T17:21:47.040687Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-22T17:22:25.742Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/uutils/coreutils/issues/10015"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/uutils",
          "defaultStatus": "affected",
          "packageName": "coreutils",
          "platforms": [
            "Linux",
            "Unix",
            "macOS"
          ],
          "product": "coreutils",
          "repo": "https://github.com/uutils/coreutils",
          "vendor": "Uutils"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Zellic"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-29",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367: Time-of-Check Time-of-Use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-22T16:08:38.522Z",
        "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "shortName": "canonical"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/uutils/coreutils/issues/10015"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "uutils coreutils mv Arbitrary File Overwrite via Cross-Device TOCTOU Race Condition"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
    "assignerShortName": "canonical",
    "cveId": "CVE-2026-35364",
    "datePublished": "2026-04-22T16:08:38.522Z",
    "dateReserved": "2026-04-02T12:58:56.088Z",
    "dateUpdated": "2026-04-22T17:22:25.742Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-35364\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-22T17:21:47.040687Z\"}}}], \"references\": [{\"url\": \"https://github.com/uutils/coreutils/issues/10015\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-22T17:21:39.628Z\"}}], \"cna\": {\"title\": \"uutils coreutils mv Arbitrary File Overwrite via Cross-Device TOCTOU Race Condition\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Zellic\"}], \"impacts\": [{\"capecId\": \"CAPEC-29\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.3, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/uutils/coreutils\", \"vendor\": \"Uutils\", \"product\": \"coreutils\", \"platforms\": [\"Linux\", \"Unix\", \"macOS\"], \"packageName\": \"coreutils\", \"collectionURL\": \"https://github.com/uutils\", \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://github.com/uutils/coreutils/issues/10015\", \"tags\": [\"issue-tracking\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-367\", \"description\": \"CWE-367: Time-of-Check Time-of-Use (TOCTOU) Race Condition\"}]}], \"providerMetadata\": {\"orgId\": \"cc1ad9ee-3454-478d-9317-d3e869d708bc\", \"shortName\": \"canonical\", \"dateUpdated\": \"2026-04-22T16:08:38.522Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-35364\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-22T17:22:25.742Z\", \"dateReserved\": \"2026-04-02T12:58:56.088Z\", \"assignerOrgId\": \"cc1ad9ee-3454-478d-9317-d3e869d708bc\", \"datePublished\": \"2026-04-22T16:08:38.522Z\", \"assignerShortName\": \"canonical\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…