CVEvulnerability
CVE-2026-74899
9.3 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-08-17
- Last modified
- 2026-08-28
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 9.3 CRITICAL — 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-95
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.
Affected configurations
• jahlives openssl encrypt (< 1.4.0)
Related
Weakness · CWE (1)
- CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code weakness
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-m25m-ggxg-239c Exploit, Mitigation, Vendor Advisory
- https://www.vulncheck.com/advisories/openssl-encrypt-before-sandbox-escape-via-type-hierarchy Third Party Advisory
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-43jx-gxq4-jpjc Not Applicable