CVE-2026-74883

openssl_encrypt versions before 1.4.0 contain a sandbox bypass vulnerability where the plugin sandbox fails to restrict alternative file access methods like pathlib.Path and io.open. Attackers can import pathlib or io modules to read and write arbitrary files, completely bypassing the restricted_open file access controls.

• CWE-693

• https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-mcjj-qw7m-j3cpExploit, Mitigation, Vendor Advisory
• https://www.vulncheck.com/advisories/openssl-encrypt-before-sandbox-bypass-via-pathlib-and-ioThird Party Advisory
• https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-mcjj-qw7m-j3cpExploit, Mitigation, Vendor Advisory

Published

Aug 17, 2026

Last Modified

Sep 1, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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