CRITICAL 9.3 NVD
CVE-2026-74899
openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes Python type objects in restricted exec() bui
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.
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-m25m-ggxg-239c
- https://www.vulncheck.com/advisories/openssl-encrypt-before-sandbox-escape-via-type-hierar
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-08-17 via NVD.
Risk Timeline
CVE Disclosed2026-08-17 · -1 days ago
Remediation Resources
vulnfeed aggregates 11766 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.