What is CVE-2026-81688?

CVE-2026-81688 is a high-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Missing Encryption of Sensitive Data. CVSS score: 7.5/10. Published 2026-08-27.

How severe is CVE-2026-81688?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Jahlives OpenSSL Encrypt

CVE-2026-81688

openssl_encrypt versions before 1.4.9 store an unkeyed SHA-256 hash of the plaintext in the cleartext file header metadata. Attackers can read this hash without the password to confirm guessed plaintexts offline or fingerprint identical plaintexts across separately-encrypted files.

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.

Affected products

Jahlives Openssl_encrypt

Weakness classification (CWE)

CWE-311 — Missing Encryption of Sensitive Data

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-81688?: CVE-2026-81688 is a high-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Missing Encryption of Sensitive Data. CVSS score: 7.5/10. Published 2026-08-27.
How severe is CVE-2026-81688?: High severity. CVSS v3 base score is 7.5 out of 10.