{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:openjsf:node_version_manager:*:*:*:*:*:node.js:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.40.5"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1889911f0841e669de0be5bd02c737a3f1fd20fa"
            },
            {
              "fixed": "6d870d182cd5333647ffa16c0d7dbcd817ec27a8"
            },
            {
              "fixed": "70fb4ede6b9731d75d86451d48caa5faffbec21c"
            },
            {
              "fixed": "90bb88748ba6c29c2cec73b18ed7057413aef308"
            }
          ],
          "repo": "https://github.com/nvm-sh/nvm",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3c52-35h2-gfmm"
  ],
  "database_specific": {
    "cna_assigner": "openjs",
    "cwe_ids": [
      "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10796.json"
  },
  "details": "nvm (Node Version Manager) through 0.40.4 executes arbitrary commands from version strings supplied by the configured Node.js/io.js mirror. Commands such as `nvm install` read the available versions from the mirror's index.tab and use the selected version, without sanitization, to build download URLs and shell/awk commands. Two sinks are affected by the same untrusted input: nvm_download() built a curl/wget command string and ran it with `eval`, so a version field containing command substitution (for example $(id)) was executed by the local shell; and nvm_get_checksum() interpolated the version-derived download slug into an awk program, so a crafted version could execute arbitrary commands via awk's system(). An attacker who controls the configured mirror, supplies mirror content to a user or CI on a non-default mirror, or machine-in-the-middles a non-TLS mirror can ∴ run arbitrary commands with the privileges of the user running nvm. The default mirror (https://nodejs.org over TLS) is not affected. Fixed on master (pending the next tagged release) by passing every argument as a literal argv element instead of using eval, by passing the value to awk as data via -v instead of interpolating it into the program, and by rejecting any version outside the Node.js/io.js version grammar before it is used.",
  "id": "CVE-2026-10796",
  "modified": "2026-07-08T05:39:23.890884750Z",
  "published": "2026-06-04T17:02:23.805Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10796.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nvm-sh/nvm/security/advisories/GHSA-3c52-35h2-gfmm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10796"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nvm-sh/nvm/commit/6d870d182cd5333647ffa16c0d7dbcd817ec27a8"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nvm-sh/nvm/commit/70fb4ede6b9731d75d86451d48caa5faffbec21c"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nvm-sh/nvm/commit/90bb88748ba6c29c2cec73b18ed7057413aef308"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nvm-sh/nvm"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "nvm executes commands from a malicious Node.js mirror's version strings"
}