CVE-2026-57456 (GCVE-0-2026-57456)
Vulnerability from cvelistv5
Published
2026-06-25 15:16
Modified
2026-06-26 03:55
Severity ?
8.4 (High) - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Summary
Vim is an open source, command line text editor. Prior to 9.2.0699, Vim's Python omni-completion (runtime/autoload/python3complete.vim and the legacy pythoncomplete.vim) executes reconstructed function and class definitions from the current buffer with exec() as part of populating the completion dictionary. When reconstructing that source, each scope's docstring is inserted verbatim between triple quotes with no escaping, so a hostile buffer can break out of the triple-quoted literal and execute attacker-controlled Python during omni-completion. This vulnerability is fixed in 9.2.0699.
References
Impacted products
Vendor Product Version
vim vim Version: < 9.2.0699
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-57456",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-25T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-26T03:55:53.888Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "vim",
          "vendor": "vim",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 9.2.0699"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Vim is an open source, command line text editor. Prior to 9.2.0699, Vim\u0027s Python omni-completion (runtime/autoload/python3complete.vim and the legacy pythoncomplete.vim) executes reconstructed function and class definitions from the current buffer with exec() as part of populating the completion dictionary. When reconstructing that source, each scope\u0027s docstring is inserted verbatim between triple quotes with no escaping, so a hostile buffer can break out of the triple-quoted literal and execute attacker-controlled Python during omni-completion. This vulnerability is fixed in 9.2.0699."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-25T15:16:16.015Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/vim/vim/security/advisories/GHSA-ppj8-wqjf-6fp3",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/vim/vim/security/advisories/GHSA-ppj8-wqjf-6fp3"
        },
        {
          "name": "https://github.com/vim/vim/commit/cce141c42740f122dd8486ae04e21c2a81016ba8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vim/vim/commit/cce141c42740f122dd8486ae04e21c2a81016ba8"
        },
        {
          "name": "https://github.com/vim/vim/releases/tag/v9.2.0699",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vim/vim/releases/tag/v9.2.0699"
        }
      ],
      "source": {
        "advisory": "GHSA-ppj8-wqjf-6fp3",
        "discovery": "UNKNOWN"
      },
      "title": "Vim: Arbitrary Code Execution via Python Omni-Completion Docstrings"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-57456",
    "datePublished": "2026-06-25T15:16:16.015Z",
    "dateReserved": "2026-06-24T13:21:20.731Z",
    "dateUpdated": "2026-06-26T03:55:53.888Z",
    "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-2026-57456\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-25T17:41:38.275531Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-25T17:41:40.680Z\"}}], \"cna\": {\"title\": \"Vim: Arbitrary Code Execution via Python Omni-Completion Docstrings\", \"source\": {\"advisory\": \"GHSA-ppj8-wqjf-6fp3\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"vim\", \"product\": \"vim\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 9.2.0699\"}]}], \"references\": [{\"url\": \"https://github.com/vim/vim/security/advisories/GHSA-ppj8-wqjf-6fp3\", \"name\": \"https://github.com/vim/vim/security/advisories/GHSA-ppj8-wqjf-6fp3\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/vim/vim/commit/cce141c42740f122dd8486ae04e21c2a81016ba8\", \"name\": \"https://github.com/vim/vim/commit/cce141c42740f122dd8486ae04e21c2a81016ba8\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/vim/vim/releases/tag/v9.2.0699\", \"name\": \"https://github.com/vim/vim/releases/tag/v9.2.0699\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Vim is an open source, command line text editor. Prior to 9.2.0699, Vim\u0027s Python omni-completion (runtime/autoload/python3complete.vim and the legacy pythoncomplete.vim) executes reconstructed function and class definitions from the current buffer with exec() as part of populating the completion dictionary. When reconstructing that source, each scope\u0027s docstring is inserted verbatim between triple quotes with no escaping, so a hostile buffer can break out of the triple-quoted literal and execute attacker-controlled Python during omni-completion. This vulnerability is fixed in 9.2.0699.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-94\", \"description\": \"CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-06-25T15:16:16.015Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-57456\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-26T03:55:53.888Z\", \"dateReserved\": \"2026-06-24T13:21:20.731Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-06-25T15:16:16.015Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.