CVE-2018-18074
python-requests: Redirect from HTTPS to HTTP does not remove Authorization header
Severity
LowRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · June 29, 2018
Updated · February 27, 2026
Description
A credentials-exposure flaw was found in python-requests, where if a request with authentication is redirected (302) from an HTTPS endpoint to an HTTP endpoint on the same host, the Authorization header is not stripped and the credentials can be read in plain text. A man-in-the-middle attacker could exploit this flaw to obtain a user's valid credentials.
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 3.0 · 2.6CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE-522 · Insufficiently Protected Credentials