---
cve: "CVE-2026-81719"
severity: "CRITICAL"
cvss: 9.3
epss: "0.3%"
vendor: "jahlives"
kev: false
exploited: false
published: "2026-08-27 17:21:02"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T09:25:03+02:00"
---

# CVE-2026-81719

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 39b0a010cae90520f74b7194f61fedd43af04ef8 (Commit)

## Referenzen

- <https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-587j-4r3v-cm2c>
- <https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-remote-code-execution-via-plugin>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-81719) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_