SB20261109191 - Ubuntu update for python-webob

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Main Vulnerability Database SB20261109191

SB20261109191 - Ubuntu update for python-webob

Published: November 9, 2026

Security Bulletin ID SB20261109191
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Open redirect (CVE-ID: CVE-2024-42353)

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

CVSSv4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.


2) Open redirect (CVE-ID: CVE-2026-44889)

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows an unauthenticated remote attacker to redirect users from a trusted WebOb application to an attacker-controlled website.

The vulnerability exists due to WebOb's Location header normalization failing to account for Python URL parsing stripping ASCII tabs, carriage returns, and newlines between leading slashes in redirect targets. An unauthenticated remote attacker can supply a crafted redirect target that becomes an external hostname reference after parsing and lure a user into following the resulting redirect.


Remediation

Install update from vendor's website.

References