Protection Mechanism Failure in urllib3 - CVE-2025-50182
Published: June 26, 2025
Vulnerability identifier: #VU111980
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-50182
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: urlib3
Affected software:
urllib3
urllib3
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to incorrect implementation of the Redirect object when handling redirects and retries in a Pyodide runtime. A remote attacker can force the library to follow redirects even if explicitly disabled.
How to mitigate CVE-2025-50182
Install updates from vendor's website.