Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jahlives | Openssl Encrypt | < 1.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-m25m-ggxg-2ExploitMitigationVendor Advisory
- https://www.vulncheck.com/advisories/openssl-encrypt-before-sandbox-escape-via-tThird Party Advisory
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-43jx-gxq4-jpjcNot Applicable
FAQ
What is CVE-2026-74899?
CVE-2026-74899 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...
How severe is CVE-2026-74899?
CVE-2026-74899 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-74899?
Check the references section above for vendor advisories and patch information. Affected products include: Jahlives Openssl Encrypt.