CVE-2026-81703

openssl_encrypt versions before 1.4.9 fail to validate encryption status of embedded post-quantum private keys in file metadata. Attackers can craft files with unencrypted embedded PQC keys that decrypt under any password, bypassing authentication and producing attacker-chosen plaintext with false integrity verification.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-qqfq-g2cv-j7v3	Vendor Advisory
https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-authentication-bypass-via-unencrypted-pqc-key	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:jahlives:openssl_encrypt:*:*:*:*:*:python:*:*

History

No history.

Information

Published : 2026-08-27 17:21

Updated : 2026-09-01 18:11

NVD link : CVE-2026-81703

Mitre link : CVE-2026-81703

CVE.ORG link : CVE-2026-81703

JSON object : View

Products Affected

jahlives

openssl_encrypt

CWE

CWE-287

Improper Authentication

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