CVE-2026-74876

CriticalCVSS 9.8/10Last modified Oct 8, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-347

Affected software

VendorProductVersions
jahlivesopenssl_encrypt< 1.4.0

References

Timeline

Published
Aug 17, 2026
Last modified
Oct 8, 2026
NVD status
Analyzed

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CVE-2026-74876: Critical severity, CVSS 9.8 | Vulnix