Is CVE-2026-74883 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-74883?

CVE-2026-74883 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-74883

Description

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.