CVE-2026-74899: openssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy
jahlives · openssl_encrypt
Fixed in 1.4.0 · Affected: jahlives openssl_encrypt before 1.4.0 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 55% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- jahlives · openssl_encryptbefore 1.4.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Improper Neutralization of Directives in Dynamically Evaluated Code · Command and Code Injection
- Vendor
- jahlives
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-74899 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.