HIGHVulnerability
CVE-2026-81719
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.
Properties
- severity
- HIGH
- score
- 7.8
- epss_score
- 0.003
- cve_id
- CVE-2026-81719
- vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- published_at
- 2026-08-27T17:21:02.320
- last_modified
- 2026-09-02T13:15:43.110
- epss_percentile
- 0.22335
Related Entities (4)
ENRICHED_BY (1)
→[Source]FIRST EPSS
DESCRIBED_BY (1)
→[Source]NVD
AFFECTS_PRODUCT (1)
→[Product]
HAS_WEAKNESS (1)
→[Weakness]Improper Control of Generation of Code ('Code Injection')
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