PT-2026-82588

CVE-2026-81687

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Published

2026-08-27

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Updated

2026-08-31

Description by

CVSS 4.0
8.7
High
MetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions openssl encrypt versions prior to 1.4.9
Description The software fails to enforce a time ceiling on key derivation function (KDF) iteration counts specified in file metadata. A KDF is a cryptographic algorithm that derives one or more secret keys from a master password. Attackers can craft files with extremely high KDF iteration counts to consume CPU resources for unbounded periods before password verification occurs.
Recommendations Update to version 1.4.9 or later.
Exploitability
Exploit
Fix
Impacts
Vendors
Affected products
Weakness enumeration
CWE-400: Uncontrolled Resource Consumption
Related identifiers
CVE-2026-81687
GHSA-RV6W-7HQ9-PR74
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