What is CVE-2026-44889?

CVE-2026-44889 is a medium-severity vulnerability in Pylons Webob, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2026-06-22.

How severe is CVE-2026-44889?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Pylons Webob

CVE-2026-44889

WebOb provides objects for HTTP requests and responses. Prior to 1.8.10, the normalization of the HTTP Location header during a redirect is vulnerable to an open redirect: WebOb joins the redirect target to the request URI using Python's u…

Vulnerability class: Open Redirect

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Pylons Webob — versions < 1.8.10

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-44889?: CVE-2026-44889 is a medium-severity vulnerability in Pylons Webob, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2026-06-22.
How severe is CVE-2026-44889?: Medium severity. CVSS v3 base score is 6.1 out of 10.