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Critical

openssl_encrypt before 1.4.9 Terminal Injection via info Command

Type: advisorySources: OSV

openssl_encrypt versions before 1.4.9 fail to sanitize terminal control characters in file metadata printed by the info command. Attackers can craft malicious files containing escape sequences to repaint terminal output and forge verification information displayed to users.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-81696
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 01:16 UTC · Revision 1

Source evidence

openssl_encrypt before 1.4.9 Terminal Injection via info Command

core-osv · Original source

Published 27 Aug 2026, 14:50 UTC

openssl_encrypt versions before 1.4.9 fail to sanitize terminal control characters in file metadata printed by the info command. Attackers can craft malicious files containing escape sequences to repaint terminal output and forge verification information displayed to users.

osv:CVE-2026-81696
Complete source record
{
  "id": "a6193a358f39ce1ac13ff5d7fa756a20600196d179926a769e7386bf6a754c68",
  "url": "https://osv.dev/vulnerability/CVE-2026-81696",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "openssl_encrypt before 1.4.9 Terminal Injection via info Command",
    "summary": "openssl_encrypt versions before 1.4.9 fail to sanitize terminal control characters in file metadata printed by the info command. Attackers can craft malicious files containing escape sequences to repaint terminal output and forge verification information displayed to users.",
    "evidence": "osv:CVE-2026-81696",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-81696",
      "aliases": [
        "CVE-2026-81696",
        "GHSA-539p-fxf4-7fv8",
        "PYSEC-2026-3775"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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-2026-81696.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.735785380Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81696.json",
        "https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-539p-fxf4-7fv8",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-81696",
        "https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-terminal-injection-via-info-command"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-117"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81696.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-81696",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 491518,
  "published_at": "2026-08-27T14:50:59.793+00:00"
}