CVE-2026-74876

jahlives openssl_encrypt

Published 17 Aug 2026 · updated 1 Sept 2026 · Analyzed

9.3 Critical · CVSS 4.0, vulncheck.com

Description

openssl_encrypt versions before 1.4.0 contain a vulnerability in PublicKeyBundle.from_dict() that creates key bundles from untrusted data without verifying signatures. Attackers can call from_dict() followed by to_identity() without signature verification to encrypt data using attacker-controlled public keys, leaking secrets.

References

github.com/jahlives/openssl_encrypt/security/advisories/GHSA-8h88-gxp3-j7pg · Mitigation, Vendor Advisory
www.vulncheck.com/advisories/openssl-encrypt-before-unverified-key-bundle-encryption · Third Party Advisory