VULNERABILITY INTELLIGENCE
CVE-2026-81691
CVSS score7.5 HIGH
EPSS probability0.27%
CISA KEVNot currently listed
Published2026-08-27
Last modified2026-09-02
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
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.
Weakness classification
- disclosure@vulncheck.com: CWE-319
Primary references
- disclosure@vulncheck.com — Vendor Advisory
- disclosure@vulncheck.com — Third Party Advisory