What is CVE-2026-81691?

CVE-2026-81691 is a high-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Cleartext Transmission of Sensitive Information. CVSS score: 7.5/10. Published 2026-08-27.

How severe is CVE-2026-81691?

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

Vulnerability in Jahlives OpenSSL Encrypt

CVE-2026-81691

openssl_encrypt versions before 1.4.9 fail to validate server URLs in login and register_with_email functions, accepting unencrypted http:// URLs and unconfigured hosts. Attackers on the network path can intercept cleartext credentials including client_id, passwords, and JWTs to achieve full keyserver account takeover.

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-319 — Cleartext Transmission of Sensitive Information

References

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

Frequently asked questions

What is CVE-2026-81691?: CVE-2026-81691 is a high-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Cleartext Transmission of Sensitive Information. CVSS score: 7.5/10. Published 2026-08-27.
How severe is CVE-2026-81691?: High severity. CVSS v3 base score is 7.5 out of 10.