CVE-2026-74899: critical vulnerability in jahlives openssl_encrypt
openssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy
Published · Updated
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48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 0.8%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
jahlives · openssl_encryptpublic PoCs found — 1
cve_referencegithub.com/siyuan-note/siyuan/security/advisories/GHSA-43jx-gxq4-jpjcunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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