mise permits untrusted local configuration to override default shell arguments

{
  "id": "9aeaf89b23b338b0a6b8a0afd2444d4f319b6c7c03cf9328710dd2047534f861",
  "url": "https://osv.dev/vulnerability/GHSA-g74g-rg72-j2p3",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mise permits untrusted local configuration to override default shell arguments",
    "summary": "## Summary Untrusted local .mise.toml [settings] can set the shell interpreter args (unix/windows default_inline / default_file shell_args), yielding arbitrary command execution, because those command-interpreter settings were not added to the global_only denylist the CVE-2026-55448 fix relies on. Code execution from an untrusted repository with no trust prompt for the malicious file, on par with the patched CVE. Confirmed at HEAD 7160170206782fdd3ef287c8302369e32152fb71. ## The defect CVE-2026-55448 and CVE-2026-35533 fixed the fact that a local project [settings] table is harvested by the settings preloader independent of the trust store (an untrusted .mise.toml sets settings without the user ever trusting it). The remediation is a per-field global_only denylist: settings marked global_only are stripped from non-global config. The maintainers marked the command-execution fields they knew about (the three forge credential_command values) but did not mark the four shell-interpreter-args settings, which are also command-execution settings because they choose the interpreter for every command mise spawns. The global_only denylist and the gap. In settings.toml, the three credential_command sinks are global_only (forgejo.credential_command around line 775, github.credential_command around 828, gitlab.credential_command around 990). The four shell-args settings do not carry global_only: - unix_default_file_shell_args (settings.toml around 2920) - unix_default_inline_shell_args (ar",
    "evidence": "osv:GHSA-g74g-rg72-j2p3",
    "products": [
      {
        "name": {
          "value": "mise",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2026.7.14",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "GHSA-g74g-rg72-j2p3",
      "aliases": [
        "CVE-2026-103929",
        "GHSA-g74g-rg72-j2p3"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2026.7.14"
                }
              ]
            }
          ],
          "package": {
            "name": "mise",
            "purl": "pkg:cargo/mise",
            "ecosystem": "crates.io"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-g74g-rg72-j2p3/GHSA-g74g-rg72-j2p3.json",
            "last_known_affected_version_range": "<= 2026.7.13"
          }
        }
      ],
      "modified": "2026-10-15T20:30:06.548105165Z",
      "provider": "osv",
      "references": [
        "https://github.com/jdx/mise/security/advisories/GHSA-g74g-rg72-j2p3",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-103929",
        "https://github.com/jdx/mise/pull/11293",
        "https://github.com/jdx/mise/commit/c6cd7a9a2ca580918562566126646e5d04317895",
        "https://github.com/jdx/mise",
        "https://github.com/jdx/mise/releases/tag/v2026.7.14"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-284",
          "CWE-78"
        ],
        "severity": "HIGH",
        "github_reviewed": true,
        "nvd_published_at": "2026-10-14T16:17:30Z",
        "github_reviewed_at": "2026-10-15T20:16:09Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103929",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 336051,
  "published_at": "2026-10-15T20:16:09+00:00"
}