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CVE-2026-81704 Details
Description
openssl_encrypt versions before 1.4.9 contain a weak key derivation vulnerability in the D-Bus CryptoService.EncryptFile handler that uses unstretched SHA-256 instead of Argon2id. Attackers can perform offline password guessing against encrypted files roughly six to seven orders of magnitude faster than documented protection by exploiting the missing key stretching and hash rounds.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 27, 2026Exploitation: NoneAutomatable: YesTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-v9r6-grch-fxw7 | [email protected] | Vendor Advisory |
| https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-weak-key-derivation-via-d-bus | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-916 | Use of Password Hash With Insufficient Computational Effort | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| jahlives openssl encrypt | < 1.4.9 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 3, 2026 | Initial Analysis | [email protected] |
| Aug 28, 2026 | CVE Modified | CISA-ADP |
| Aug 27, 2026 | New CVE Received | [email protected] |