PT-2026-82590 · Unknown · Openssl-Encrypt
CVE-2026-81689
·
Published
2026-08-27
·
Updated
2026-09-03
CVSS v4.0
8.7
High
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Name of the Vulnerable Software and Affected Versions
openssl encrypt versions prior to 1.4.9
Description
The software derives the remote-pepper wrap key using unsalted HKDF-SHA256 or bare SHA-256 of the password. This results in identical keys being used across all users and files. An attacker with access to wrapped pepper blobs can precompute a single dictionary table to perform fleet-wide offline password guessing at hardware speed to recover user passwords.
Recommendations
Update openssl encrypt to version 1.4.9 or later.
Exploit
Fix
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Openssl-Encrypt