CVE-2026-81689

EUVD-2026-67045
openssl_encrypt versions before 1.4.9 derive the remote-pepper wrap key using unsalted HKDF-SHA256 or bare SHA-256 of the password, allowing identical keys across all users and files. Attackers with access to wrapped pepper blobs can precompute a single dictionary table and perform fleet-wide offline password guessing at hardware speed to recover user passwords.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 9.61%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
jahlivesopenssl_encrypt
𝑥
< 1.4.9
CNA
Common Weakness Enumeration
References
https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-3v63-778v-3mvp
https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-weak-pepper-key-derivation