openssl_encrypt before 1.4.9 Information Disclosure via Command Line

{
  "id": "bfbc0b61286509a84d32f75306b397d5efccd121c319045ac1dfb8431d53cba2",
  "url": "https://osv.dev/vulnerability/CVE-2026-81684",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "openssl_encrypt before 1.4.9 Information Disclosure via Command Line",
    "summary": "In openssl_encrypt (pip package openssl-encrypt) versions <= 1.4.8, the desktop GUI passes the steganography password to the CLI child process on the command line via the --stego-password argument (on both encrypt and decrypt paths) instead of via an environment variable as done for the main password. Any local user can read the steganography password from /proc//cmdline for the lifetime of the subprocess. Fixed in 1.4.9.",
    "evidence": "osv:CVE-2026-81684",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-81684",
      "aliases": [
        "CVE-2026-81684",
        "GHSA-rx2c-m92f-qv6p",
        "PYSEC-2026-3958"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jahlives/openssl_encrypt",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "39b0a010cae90520f74b7194f61fedd43af04ef8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.9"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "cpe": "cpe:2.3:a:jahlives:openssl_encrypt:*:*:*:*:*:python:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.4.7",
            "v1.4.6",
            "v1.4.5",
            "v1.4.4",
            "v1.4.2",
            "v1.4.1rc2",
            "v1.4.1rc1",
            "v1.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81684.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.685782467Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81684.json",
        "https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-rx2c-m92f-qv6p",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-81684",
        "https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-information-disclosure-via-command-line"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-214"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81684.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-81684",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492471,
  "published_at": "2026-08-27T14:50:49.62+00:00"
}