Critical severity9.8OSV Advisory· Published Aug 17, 2026· Updated Sep 1, 2026
CVE-2026-74886
CVE-2026-74886
Description
openssl_encrypt versions before 1.4.0 contain a plugin sandbox bypass vulnerability where the PluginImportGuard blocks a different set of modules than the AST analyzer's DANGEROUS_MODULES set. Attackers can bypass AST analysis through string obfuscation or encoding to import unblocked dangerous modules like sys, shutil, multiprocessing, importlib, and pickle for arbitrary code execution.
Affected products
2<1.4.0+ 1 more
- (no CPE)range: <1.4.0
- (no CPE)
Patches
Vulnerability mechanics
References
2- github.com/jahlives/openssl_encrypt/security/advisories/GHSA-9pgj-v69p-q586nvdMitigationVendor Advisory
- www.vulncheck.com/advisories/openssl-encrypt-before-plugin-import-guard-bypassnvdThird Party Advisory
News mentions
1- Jahlives openssl_encrypt: 25 Critical Flaws Including Auth Bypass and Sandbox Escapes Disclosed TogetherVypr Intelligence · Aug 17, 2026