Vulnerability in Jahlives OpenSSL Encrypt
CVE-2026-74886
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (50.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
- Jahlives OpenSSL Encrypt — versions 0, 1.4.0
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-9pgj-v69p-q586) (vendor-advisory, Mitigation, Vendor Advisory)
- VulnCheck Advisory: openssl_encrypt before 1.4.0 Plugin Import Guard Bypass (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-74886?
- CVE-2026-74886 is a critical-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Incomplete List of Disallowed Inputs. CVSS score: 9.8/10. Published 2026-08-17.
- How severe is CVE-2026-74886?
- Critical severity. CVSS v3 base score is 9.8 out of 10.