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Related vulnerabilities
PYSEC-2026-3802
Vulnerability from pysec - Published: 2026-08-27 17:21 - Updated: 2026-09-03 10:37
VLAI
Details
openssl_encrypt before 1.4.9 executes untrusted third-party plugins with insufficient controls: the plugin signature policy defaulted to WARN, so an unsigned/unverifiable non-built-in plugin was compiled and executed in the host process at import time, before the runtime sandbox is installed. The only default gate was an incomplete, bypassable AST denylist. If a user is induced to load an attacker's plugin, this results in arbitrary code execution with the privileges of the user running openssl_encrypt. Fixed in 1.4.9 by defaulting the signature policy to ENFORCE for non-built-in plugins.
Severity
Impacted products
| Name | purl | openssl-encrypt | pkg:pypi/openssl-encrypt |
|---|
Aliases
{
"affected": [
{
"ecosystem_specific": {},
"package": {
"ecosystem": "PyPI",
"name": "openssl-encrypt",
"purl": "pkg:pypi/openssl-encrypt"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.2.2",
"0.2.3",
"0.2.4",
"0.2.5",
"0.2.6",
"0.3.0",
"0.3.1",
"0.3.2",
"0.3.3",
"0.4.0",
"0.4.1",
"0.4.2",
"0.4.3",
"0.4.4",
"0.5.0",
"0.5.1",
"0.5.3",
"0.6.0rc1",
"0.7.0rc2",
"0.7.1",
"0.7.2",
"0.8.0",
"0.8.1",
"0.8.2",
"0.9.2",
"1.0.0",
"1.0.1",
"1.0.2",
"1.0.3",
"1.1.0",
"1.2.0",
"1.2.1",
"1.3.0",
"1.3.1",
"1.3.2",
"1.3.3",
"1.3.4",
"1.3.5",
"1.4.0",
"1.4.0b3",
"1.4.0b4",
"1.4.0b5",
"1.4.0b6",
"1.4.0b7",
"1.4.0b8",
"1.4.1",
"1.4.1rc2",
"1.4.2",
"1.4.4",
"1.4.5",
"1.4.6",
"1.4.7",
"1.4.8"
]
}
],
"aliases": [
"CVE-2026-81719",
"GHSA-587j-4r3v-cm2c"
],
"details": "openssl_encrypt before 1.4.9 executes untrusted third-party plugins with insufficient controls: the plugin signature policy defaulted to WARN, so an unsigned/unverifiable non-built-in plugin was compiled and executed in the host process at import time, before the runtime sandbox is installed. The only default gate was an incomplete, bypassable AST denylist. If a user is induced to load an attacker\u0027s plugin, this results in arbitrary code execution with the privileges of the user running openssl_encrypt. Fixed in 1.4.9 by defaulting the signature policy to ENFORCE for non-built-in plugins.",
"id": "PYSEC-2026-3802",
"modified": "2026-09-03T10:37:18.540088Z",
"published": "2026-08-27T17:21:02.320Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-587j-4r3v-cm2c"
},
{
"type": "ADVISORY",
"url": "https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-remote-code-execution-via-plugin"
}
],
"severity": [
{
"score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}