{"apiVersion":"1.0","identifier":"CVE-2026-74899","description":"openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes Python type objects in restricted exec() builtins. Attackers can traverse the Python class hierarchy via __class__.__mro__.__subclasses__() to access system functions and execute arbitrary OS commands.","publishedAt":"2026-08-17T11:16:44","lastModifiedAt":"2026-08-26T17:35:02","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74899","cvssScore":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00388,"riskScore":1.01,"affectedProduct":"openssl_encrypt","affectedVersions":"<1.4.0","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74899","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74899","en":"https://www.redsauce.net/en/cves/CVE-2026-74899","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74899","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74899","de":"https://www.redsauce.net/de/cves/CVE-2026-74899","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74899","el":"https://www.redsauce.net/el/cves/CVE-2026-74899"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74899"}}