by Kastro
Paper/Archive/CVE-2026-74886

CVE-2026-74886

jahlives openssl_encrypt — openssl_encrypt before 1.4.0 Plugin Import Guard Bypass

EPSS 0.7%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 52.5.525 × 2010.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
openssl_encrypt< 1.4.01.4.0CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorygithub.com/jahlives/openssl_encrypt/security/advisories/GHSA-9pgj-v69p-q586writeupvulncheck.com/advisories/openssl-encrypt-before-plugin-import-guard-bypass