Elio through 1.13.0 Insecure Temporary File Creation in External Preview Command Capture

{
  "id": "ea2b49a8081a93d5d6cd3cf48c1442593430974df7d6d6daf8a351ebe88d95c2",
  "url": "https://osv.dev/vulnerability/CVE-2026-110234",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Elio through 1.13.0 Insecure Temporary File Creation in External Preview Command Capture",
    "summary": "Elio through 1.13.0 contains an insecure temporary file vulnerability that allows local users to overwrite another user's files by pre-creating symbolic links at predictable capture paths. Attackers who know the victim's Elio process ID can plant a symlink so previewing media, fonts or archives truncates and overwrites victim-owned files.",
    "evidence": "osv:CVE-2026-110234",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-110234",
      "aliases": [
        "CVE-2026-110234"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/elio-fm/elio",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e7daae44ce748310de441499576bdc31b936d54c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.13.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e7daae44ce748310de441499576bdc31b936d54c"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.13.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.12.0",
            "v1.11.2",
            "v1.11.1",
            "v1.11.0",
            "v1.10.0",
            "v1.9.0",
            "v1.8.0",
            "v1.7.0",
            "v1.6.0",
            "v1.5.1",
            "v1.5.0",
            "v1.4.0",
            "v1.3.0",
            "v1.2.0",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110234.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.732972583Z",
      "provider": "osv",
      "references": [
        "https://crates.io",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110234.json",
        "https://github.com/elio-fm/elio/releases/tag/v1.13.0",
        "https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/r1d_wQojfg",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-110234",
        "https://www.vulncheck.com/advisories/elio-through-1.13.0-insecure-temporary-file-creation-in-external-preview-command-capture",
        "https://github.com/elio-fm/elio",
        "https://github.com/elio-fm/elio/blob/e7daae44ce748310de441499576bdc31b936d54c/src/preview/archives/external_tools.rs#L30-L45",
        "https://github.com/elio-fm/elio/blob/e7daae44ce748310de441499576bdc31b936d54c/src/preview/external_commands.rs#L14-L47",
        "https://github.com/elio-fm/elio/blob/e7daae44ce748310de441499576bdc31b936d54c/src/preview/external_commands.rs#L92-L95"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-377"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110234.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-110234",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 493344,
  "published_at": "2026-10-13T18:50:16.051+00:00"
}