CVE-2026-81718

openssl_encrypt versions before 1.4.9 use under-parameterized PBKDF2-HMAC-SHA256 with only 100,000 iterations to protect PQC keyfile private keys and 10,000 iterations for dual-encryption file-password verification. Attackers who obtain keyfiles or encrypted files can brute-force wrapping passwords offline using GPU or ASIC acceleration.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-fmjx-p826-6fvr
https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-weak-cryptographic-parameters

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-27 17:21

Updated : 2026-08-31 18:17

NVD link : CVE-2026-81718

Mitre link : CVE-2026-81718

CVE.ORG link : CVE-2026-81718

JSON object : View

Products Affected

No product.

CWE

CWE-326

Inadequate Encryption Strength

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