CVE-2021-38165
lynx: Disclosure of HTTP authentication credentials via SNI data
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 7, 2021
Updated · June 28, 2026
Description
A flaw was found in the way lynx parsed URLs with userinfo part containing authentication credentials. These credentials were included in the Server Name Indication (SNI) TLS extension data and sent unencrypted during the TLS connection handshake. This could lead to exposure of authentication credentials to attackers able to eavesdrop on network connection between the lynx browser and the server.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.3CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE-522 · Insufficiently Protected Credentials