Vulnerability in Jahlives OpenSSL Encrypt
CVE-2026-81704
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-v9r6-grch-fxw7) (vendor-advisory, Vendor Advisory)
- VulnCheck Advisory: openssl_encrypt before 1.4.9 Weak Key Derivation via D-Bus (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-81704?
- CVE-2026-81704 is a high-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 7.5/10. Published 2026-08-27.
- How severe is CVE-2026-81704?
- High severity. CVSS v3 base score is 7.5 out of 10.