{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-94093",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-94093",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-20T22:45:17.509Z",
    "updatedAt": "2026-09-21T16:21:48.911Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "DLR-RM stable-baselines3 save_util.py VecNormalize.load deserialization",
      "summary": "A security vulnerability has been detected in DLR-RM stable-baselines3 up to 2.9.0. This affects the function PPO.load/load_replay_buffer/VecNormalize.load of the file save_util.py. Such manipulation leads to deserialization. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. In v2.9.0 the PyTorch tensor load path is hardened (weights_only=True), but that hardening was later reverted on master via PR #1913 \"Hotfix: revert loading with weights_only=True\" [blocked] to fix PyTorch 1.13 compat - so even the one \"safe\" path is inconsistent across versions. #2281 was closed as a duplicate of #1831 since both are unsafe pickle deserialization - but #1831's fix (PR #41) only gated the Hugging Face Hub loader in the separate huggingface_sb3 package. This finding covers the core stable_baselines3 load APIs (PPO.load, load_replay_buffer, VecNormalize.load), which have no safe mode or gate and remained exploitable in v2.9.0 until the outstanding hardening (PR #2264) ships.",
      "affected": [
        {
          "vendor": "DLR-RM",
          "product": "stable-baselines3",
          "versions": [
            {
              "version": "2.0",
              "status": "affected"
            },
            {
              "version": "2.1",
              "status": "affected"
            },
            {
              "version": "2.2",
              "status": "affected"
            },
            {
              "version": "2.3",
              "status": "affected"
            },
            {
              "version": "2.4",
              "status": "affected"
            },
            {
              "version": "2.5",
              "status": "affected"
            },
            {
              "version": "2.6",
              "status": "affected"
            },
            {
              "version": "2.7",
              "status": "affected"
            },
            {
              "version": "2.8",
              "status": "affected"
            },
            {
              "version": "2.9.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}